2056591388 has 48 divisors (see below), whose sum is σ = 4023684000. Its totient is φ = 914042880.

The previous prime is 2056591351. The next prime is 2056591477. The reversal of 2056591388 is 8831956502.

It is a super-3 number, since 3×2056591388³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448628 + ... + 453188.

It is an arithmetic number, because the mean of its divisors is an integer number (83826750).

Almost surely, 2^2056591388 is an apocalyptic number.

It is an amenable number.

2056591388 is a deficient number, since it is larger than the sum of its proper divisors (1967092612).

2056591388 is a wasteful number, since it uses less digits than its factorization.

2056591388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4950 (or 4948 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 47.

The square root of 2056591388 is about 45349.6569777545. The cubic root of 2056591388 is about 1271.6941426381.

The spelling of 2056591388 in words is "two billion, fifty-six million, five hundred ninety-one thousand, three hundred eighty-eight".