25075557832 has 64 divisors (see below), whose sum is σ = 52779988800. Its totient is φ = 11088779520.

The previous prime is 25075557809. The next prime is 25075557863. The reversal of 25075557832 is 23875557052.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363363 + ... + 426829.

It is an arithmetic number, because the mean of its divisors is an integer number (824687325).

Almost surely, 2^25075557832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25075557832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26389994400).

25075557832 is an abundant number, since it is smaller than the sum of its proper divisors (27704430968).

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

25075557832 is a wasteful number, since it uses less digits than its factorization.

25075557832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63646 (or 63642 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 49.

The spelling of 25075557832 in words is "twenty-five billion, seventy-five million, five hundred fifty-seven thousand, eight hundred thirty-two".