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25230048480 = 253657132377
BaseRepresentation
bin10111011111110100…
…111111110011100000
32102010022210021000000
4113133310333303200
5403132343022410
615331315300000
71552136605440
oct273764776340
972108707000
1025230048480
11a77778293a
124a815aa600
1324c10b1890
141314b4c120
159c9eb4dc0
hex5dfd3fce0

25230048480 has 672 divisors, whose sum is σ = 110037783744. Its totient is φ = 5321023488.

The previous prime is 25230048479. The next prime is 25230048509. The reversal of 25230048480 is 8484003252.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 111 ways as a sum of consecutive naturals, for example, 10613052 + ... + 10615428.

It is an arithmetic number, because the mean of its divisors is an integer number (163746702).

Almost surely, 225230048480 is an apocalyptic number.

25230048480 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 25230048480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55018891872).

25230048480 is an abundant number, since it is smaller than the sum of its proper divisors (84807735264).

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

25230048480 is a wasteful number, since it uses less digits than its factorization.

25230048480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2430 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

The spelling of 25230048480 in words is "twenty-five billion, two hundred thirty million, forty-eight thousand, four hundred eighty".