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25351040000000 = 213571113277
BaseRepresentation
bin1011100001110011111111…
…01110111110000000000000
310022202112110120021022020102
411300321333232332000000
511310322412220000000
6125530035040101532
75224360255401221
oct560717756760000
9108675416238212
1025351040000000
1180943521a8280
122a152500048a8
13111b79254a320
14638dd5637248
152de68aa8e3d5
hex170e7fbbe000

25351040000000 has 896 divisors, whose sum is σ = 74721647774592. Its totient is φ = 8478720000000.

The previous prime is 25351039999979. The next prime is 25351040000047. The reversal of 25351040000000 is 4015352.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 91519999862 + ... + 91520000138.

It is an arithmetic number, because the mean of its divisors is an integer number (83394696177).

Almost surely, 225351040000000 is an apocalyptic number.

25351040000000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25351040000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37360823887296).

25351040000000 is an abundant number, since it is smaller than the sum of its proper divisors (49370607774592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25351040000000 is an frugal number, since it uses more digits than its factorization.

25351040000000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 308 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 25351040000000 its reverse (4015352), we get a palindrome (25351044015352).

The spelling of 25351040000000 in words is "twenty-five trillion, three hundred fifty-one billion, forty million", and thus it is an aban number.