25630985092 has 24 divisors (see below), whose sum is σ = 44960038200. Its totient is φ = 12785289216.

The previous prime is 25630985089. The next prime is 25630985141. The reversal of 25630985092 is 29058903652.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2498400256 + 23132584836 = 49984^2 + 152094^2 .

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6755548 + ... + 6759340.

It is an arithmetic number, because the mean of its divisors is an integer number (1873334925).

Almost surely, 2^25630985092 is an apocalyptic number.

It is an amenable number.

25630985092 is a deficient number, since it is larger than the sum of its proper divisors (19329053108).

25630985092 is a wasteful number, since it uses less digits than its factorization.

25630985092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335 (or 7333 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 25630985092 in words is "twenty-five billion, six hundred thirty million, nine hundred eighty-five thousand, ninety-two".