25629662652 has 48 divisors (see below), whose sum is σ = 65283456000. Its totient is φ = 7761288960.

The previous prime is 25629662623. The next prime is 25629662677. The reversal of 25629662652 is 25626692652.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 25629662595 and 25629662604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131349 + ... + 261747.

It is an arithmetic number, because the mean of its divisors is an integer number (1360072000).

Almost surely, 2^25629662652 is an apocalyptic number.

25629662652 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

25629662652 is an abundant number, since it is smaller than the sum of its proper divisors (39653793348).

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

25629662652 is a wasteful number, since it uses less digits than its factorization.

25629662652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131906 (or 131904 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 51.

The spelling of 25629662652 in words is "twenty-five billion, six hundred twenty-nine million, six hundred sixty-two thousand, six hundred fifty-two".