25952123720 has 64 divisors (see below), whose sum is σ = 59402127600. Its totient is φ = 10202828800.

The previous prime is 25952123657. The next prime is 25952123741. The reversal of 25952123720 is 2732125952.

It can be written as a sum of positive squares in 8 ways, for example, as 19543480804 + 6408642916 = 139798^2 + 80054^2 .

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, 530036 + ... + 576924.

Almost surely, 2^25952123720 is an apocalyptic number.

25952123720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25952123720 is an abundant number, since it is smaller than the sum of its proper divisors (33450003880).

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

25952123720 is a wasteful number, since it uses less digits than its factorization.

25952123720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47138 (or 47134 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The spelling of 25952123720 in words is "twenty-five billion, nine hundred fifty-two million, one hundred twenty-three thousand, seven hundred twenty".