25630031632 has 20 divisors (see below), whose sum is σ = 49842797580. Its totient is φ = 12767374208.

The previous prime is 25630031593. The next prime is 25630031653. The reversal of 25630031632 is 23613003652.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 11091459856 + 14538571776 = 105316^2 + 120576^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25630031594 and 25630031603.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2973163 + ... + 2981770.

It is an arithmetic number, because the mean of its divisors is an integer number (2492139879).

Almost surely, 2^25630031632 is an apocalyptic number.

It is an amenable number.

25630031632 is a deficient number, since it is larger than the sum of its proper divisors (24212765948).

25630031632 is a wasteful number, since it uses less digits than its factorization.

25630031632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955210 (or 5955204 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 31.

The spelling of 25630031632 in words is "twenty-five billion, six hundred thirty million, thirty-one thousand, six hundred thirty-two".