56886830 has 64 divisors (see below), whose sum is σ = 137507328. Its totient is φ = 16364160.

The previous prime is 56886821. The next prime is 56886839. The reversal of 56886830 is 3868865.

56886830 = T₉₈₈ + T₉₈₉ + ... + T₁₀₉₂.

It is an interprime number because it is at equal distance from previous prime (56886821) and next prime (56886839).

It is a super-2 number, since 2×56886830² = 6472222854897800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56886839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7169 + ... + 12851.

It is an arithmetic number, because the mean of its divisors is an integer number (2148552).

Almost surely, 2^56886830 is an apocalyptic number.

56886830 is an abundant number, since it is smaller than the sum of its proper divisors (80620498).

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

56886830 is a wasteful number, since it uses less digits than its factorization.

56886830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721.

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 56886830 is about 7542.3358450814. The cubic root of 56886830 is about 384.5952456224.

The spelling of 56886830 in words is "fifty-six million, eight hundred eighty-six thousand, eight hundred thirty".