25998961032 has 96 divisors (see below), whose sum is σ = 76841930880. Its totient is φ = 7875722880.

The previous prime is 25998961019. The next prime is 25998961057. The reversal of 25998961032 is 23016989952.

It is a happy number.

25998961032 is a `hidden beast` number, since 2 + 599 + 8 + 9 + 6 + 10 + 32 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 25998961032.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4474273 + ... + 4480079.

It is an arithmetic number, because the mean of its divisors is an integer number (800436780).

Almost surely, 2^25998961032 is an apocalyptic number.

25998961032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25998961032 is an abundant number, since it is smaller than the sum of its proper divisors (50842969848).

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

25998961032 is a wasteful number, since it uses less digits than its factorization.

25998961032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11483 (or 11476 counting only the distinct ones).

The product of its (nonzero) digits is 2099520, while the sum is 54.

The spelling of 25998961032 in words is "twenty-five billion, nine hundred ninety-eight million, nine hundred sixty-one thousand, thirty-two".