25909988990952 has 64 divisors (see below), whose sum is σ = 70665494860800. Its totient is φ = 7851301979840.

The previous prime is 25909988990929. The next prime is 25909988990981.

25909988990952 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×25909988990952² (a number of 28 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 8730799 + ... + 11315777.

It is an arithmetic number, because the mean of its divisors is an integer number (1104148357200).

Almost surely, 2^{25909988990952} is an apocalyptic number.

25909988990952 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25909988990952 is an abundant number, since it is smaller than the sum of its proper divisors (44755505869848).

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

25909988990952 is a wasteful number, since it uses less digits than its factorization.

25909988990952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2622966 (or 2622962 counting only the distinct ones).

The product of its (nonzero) digits is 3401222400, while the sum is 84.

The spelling of 25909988990952 in words is "twenty-five trillion, nine hundred nine billion, nine hundred eighty-eight million, nine hundred ninety thousand, nine hundred fifty-two".