2556472520 has 32 divisors (see below), whose sum is σ = 6573787200. Its totient is φ = 876504768.

The previous prime is 2556472511. The next prime is 2556472531. The reversal of 2556472520 is 252746552.

It is a happy number.

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, 4564850 + ... + 4565409.

It is an arithmetic number, because the mean of its divisors is an integer number (205430850).

Almost surely, 2^2556472520 is an apocalyptic number.

2556472520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2556472520 is an abundant number, since it is smaller than the sum of its proper divisors (4017314680).

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

2556472520 is a wasteful number, since it uses less digits than its factorization.

2556472520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9130277 (or 9130273 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 38.

The square root of 2556472520 is about 50561.5715736764. The cubic root of 2556472520 is about 1367.3521449899.

The spelling of 2556472520 in words is "two billion, five hundred fifty-six million, four hundred seventy-two thousand, five hundred twenty".