5220740856 has 32 divisors (see below), whose sum is σ = 13106476800. Its totient is φ = 1732963680.

The previous prime is 5220740849. The next prime is 5220740873. The reversal of 5220740856 is 6580470225.

It is a super-2 number, since 2×5220740856² = 54512270171015225472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 449350 + ... + 460821.

It is an arithmetic number, because the mean of its divisors is an integer number (409577400).

Almost surely, 2^5220740856 is an apocalyptic number.

It is an amenable number.

5220740856 is an abundant number, since it is smaller than the sum of its proper divisors (7885735944).

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

5220740856 is a wasteful number, since it uses less digits than its factorization.

5220740856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 910419 (or 910415 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 5220740856 is about 72254.6943526855. The cubic root of 5220740856 is about 1734.7785576133.

The spelling of 5220740856 in words is "five billion, two hundred twenty million, seven hundred forty thousand, eight hundred fifty-six".