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25025505275 = 521675994133
BaseRepresentation
bin10111010011101000…
…101110011111111011
32101121001220101110202
4113103220232133323
5402223012132100
615255131232415
71544104166531
oct272350563773
971531811422
1025025505275
11a682277571
124a24ba870b
13248a8c66b4
1412d5906151
159b705e7d5
hex5d3a2e7fb

25025505275 has 12 divisors (see below), whose sum is σ = 31217449872. Its totient is φ = 19900518240.

The previous prime is 25025505269. The next prime is 25025505277. The reversal of 25025505275 is 57250552052.

It is a de Polignac number, because none of the positive numbers 2k-25025505275 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25025505277) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2992892 + ... + 3001241.

It is an arithmetic number, because the mean of its divisors is an integer number (2601454156).

Almost surely, 225025505275 is an apocalyptic number.

25025505275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25025505275 is a deficient number, since it is larger than the sum of its proper divisors (6191944597).

25025505275 is a wasteful number, since it uses less digits than its factorization.

25025505275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5994310 (or 5994305 counting only the distinct ones).

The product of its (nonzero) digits is 175000, while the sum is 38.

The spelling of 25025505275 in words is "twenty-five billion, twenty-five million, five hundred five thousand, two hundred seventy-five".

Divisors: 1 5 25 167 835 4175 5994133 29970665 149853325 1001020211 5005101055 25025505275