25665350472 has 32 divisors (see below), whose sum is σ = 71292640800. Its totient is φ = 8555116752.

The previous prime is 25665350467. The next prime is 25665350521. The reversal of 25665350472 is 27405356652.

25665350472 is a `hidden beast` number, since 25 + 6 + 6 + 53 + 504 + 72 = 666.

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, 59410318 + ... + 59410749.

It is an arithmetic number, because the mean of its divisors is an integer number (2227895025).

Almost surely, 2^25665350472 is an apocalyptic number.

It is an amenable number.

25665350472 is an abundant number, since it is smaller than the sum of its proper divisors (45627290328).

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

25665350472 is a wasteful number, since it uses less digits than its factorization.

25665350472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118821082 (or 118821072 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 25665350472 in words is "twenty-five billion, six hundred sixty-five million, three hundred fifty thousand, four hundred seventy-two".