2056557031 has 8 divisors (see below), whose sum is σ = 2183135760. Its totient is φ = 1930601088.

The previous prime is 2056557023. The next prime is 2056557073. The reversal of 2056557031 is 1307556502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2056557031 - 2³ = 2056557023 is a prime.

It is a super-2 number, since 2×2056557031² = 8458853643511069922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056557731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148881 + ... + 162106.

It is an arithmetic number, because the mean of its divisors is an integer number (272891970).

Almost surely, 2^2056557031 is an apocalyptic number.

2056557031 is a deficient number, since it is larger than the sum of its proper divisors (126578729).

2056557031 is a wasteful number, since it uses less digits than its factorization.

2056557031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311393.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 2056557031 is about 45349.2781750713. The cubic root of 2056557031 is about 1271.6870610436.

The spelling of 2056557031 in words is "two billion, fifty-six million, five hundred fifty-seven thousand, thirty-one".