25557170472 has 48 divisors (see below), whose sum is σ = 69257298240. Its totient is φ = 8514138528.

The previous prime is 25557170449. The next prime is 25557170477. The reversal of 25557170472 is 27407175552.

25557170472 is a `hidden beast` number, since 2 + 5 + 5 + 5 + 7 + 170 + 472 = 666.

It is not an unprimeable number, because it can be changed into a prime (25557170477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24193 + ... + 227375.

It is an arithmetic number, because the mean of its divisors is an integer number (1442860380).

Almost surely, 2^25557170472 is an apocalyptic number.

It is an amenable number.

25557170472 is an abundant number, since it is smaller than the sum of its proper divisors (43700127768).

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

25557170472 is a wasteful number, since it uses less digits than its factorization.

25557170472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204942 (or 204935 counting only the distinct ones).

The product of its (nonzero) digits is 686000, while the sum is 45.

The spelling of 25557170472 in words is "twenty-five billion, five hundred fifty-seven million, one hundred seventy thousand, four hundred seventy-two".