2556472971 has 96 divisors (see below), whose sum is σ = 4193130240. Its totient is φ = 1375875072.

The previous prime is 2556472951. The next prime is 2556472981. The reversal of 2556472971 is 1792746552.

It is not a de Polignac number, because 2556472971 - 2¹⁴ = 2556456587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2556472971.

It is not an unprimeable number, because it can be changed into a prime (2556472951) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 10971871 + ... + 10972103.

It is an arithmetic number, because the mean of its divisors is an integer number (43678440).

Almost surely, 2^2556472971 is an apocalyptic number.

2556472971 is a deficient number, since it is larger than the sum of its proper divisors (1636657269).

2556472971 is a wasteful number, since it uses less digits than its factorization.

2556472971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 352 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 48.

The square root of 2556472971 is about 50561.5760335850. The cubic root of 2556472971 is about 1367.3522253971.

The spelling of 2556472971 in words is "two billion, five hundred fifty-six million, four hundred seventy-two thousand, nine hundred seventy-one".