25162426920 has 64 divisors (see below), whose sum is σ = 79927715520. Its totient is φ = 6315275264.

The previous prime is 25162426879. The next prime is 25162426943. The reversal of 25162426920 is 2962426152.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6165222 + ... + 6169301.

It is an arithmetic number, because the mean of its divisors is an integer number (1248870555).

Almost surely, 2^25162426920 is an apocalyptic number.

25162426920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25162426920 is an abundant number, since it is smaller than the sum of its proper divisors (54765288600).

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

25162426920 is a wasteful number, since it uses less digits than its factorization.

25162426920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12334554 (or 12334550 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 39.

The spelling of 25162426920 in words is "twenty-five billion, one hundred sixty-two million, four hundred twenty-six thousand, nine hundred twenty".