56861130 has 32 divisors (see below), whose sum is σ = 140871168. Its totient is φ = 14673600.

The previous prime is 56861111. The next prime is 56861149. The reversal of 56861130 is 3116865.

56861130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (56861111) and next prime (56861149).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29641 + ... + 31500.

It is an arithmetic number, because the mean of its divisors is an integer number (4402224).

Almost surely, 2^56861130 is an apocalyptic number.

56861130 is an abundant number, since it is smaller than the sum of its proper divisors (84010038).

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

56861130 is a wasteful number, since it uses less digits than its factorization.

56861130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61182.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 56861130 is about 7540.6319363831. The cubic root of 56861130 is about 384.5373201668.

Adding to 56861130 its reverse (3116865), we get a palindrome (59977995).

The spelling of 56861130 in words is "fifty-six million, eight hundred sixty-one thousand, one hundred thirty".