25530270956 has 12 divisors (see below), whose sum is σ = 44679105240. Its totient is φ = 12764812320.

The previous prime is 25530270943. The next prime is 25530270979. The reversal of 25530270956 is 65907203552.

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, 228680 + ... + 321488.

It is an arithmetic number, because the mean of its divisors is an integer number (3723258770).

Almost surely, 2^25530270956 is an apocalyptic number.

It is an amenable number.

25530270956 is a deficient number, since it is larger than the sum of its proper divisors (19148834284).

25530270956 is a wasteful number, since it uses less digits than its factorization.

25530270956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161584 (or 161582 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 44.

The spelling of 25530270956 in words is "twenty-five billion, five hundred thirty million, two hundred seventy thousand, nine hundred fifty-six".