25052213656 has 16 divisors (see below), whose sum is σ = 47000606040. Its totient is φ = 12518718720.

The previous prime is 25052213639. The next prime is 25052213687. The reversal of 25052213656 is 65631225052.

It is a super-2 number, since 2×25052213656² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

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, 909090 + ... + 936241.

Almost surely, 2^25052213656 is an apocalyptic number.

It is an amenable number.

25052213656 is a deficient number, since it is larger than the sum of its proper divisors (21948392384).

25052213656 is a wasteful number, since it uses less digits than its factorization.

25052213656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847034 (or 1847030 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 25052213656 in words is "twenty-five billion, fifty-two million, two hundred thirteen thousand, six hundred fifty-six".