25567475912 has 16 divisors (see below), whose sum is σ = 52297110000. Its totient is φ = 11621579920.

The previous prime is 25567475849. The next prime is 25567475963. The reversal of 25567475912 is 21957476552.

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 3 ways as a sum of consecutive naturals, for example, 145269662 + ... + 145269837.

It is an arithmetic number, because the mean of its divisors is an integer number (3268569375).

Almost surely, 2^25567475912 is an apocalyptic number.

25567475912 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25567475912 is an abundant number, since it is smaller than the sum of its proper divisors (26729634088).

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

25567475912 is a wasteful number, since it uses less digits than its factorization.

25567475912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290539516 (or 290539512 counting only the distinct ones).

The product of its digits is 5292000, while the sum is 53.

The spelling of 25567475912 in words is "twenty-five billion, five hundred sixty-seven million, four hundred seventy-five thousand, nine hundred twelve".