2520551856 has 40 divisors (see below), whose sum is σ = 6854134720. Its totient is φ = 795963456.

The previous prime is 2520551843. The next prime is 2520551857. The reversal of 2520551856 is 6581550252.

It is not an unprimeable number, because it can be changed into a prime (2520551857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1380970 + ... + 1382793.

It is an arithmetic number, because the mean of its divisors is an integer number (171353368).

Almost surely, 2^2520551856 is an apocalyptic number.

It is an amenable number.

2520551856 is an abundant number, since it is smaller than the sum of its proper divisors (4333582864).

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

2520551856 is a wasteful number, since it uses less digits than its factorization.

2520551856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763793 (or 2763787 counting only the distinct ones).

The product of its (nonzero) digits is 120000, while the sum is 39.

The square root of 2520551856 is about 50205.0979084794. The cubic root of 2520551856 is about 1360.9177513652.

The spelling of 2520551856 in words is "two billion, five hundred twenty million, five hundred fifty-one thousand, eight hundred fifty-six".