56105670 has 64 divisors (see below), whose sum is σ = 142663680. Its totient is φ = 14082048.

The previous prime is 56105663. The next prime is 56105681. The reversal of 56105670 is 7650165.

It is a super-2 number, since 2×56105670² = 6295692412297800, which contains 22 as substring.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 146299 + ... + 146681.

It is an arithmetic number, because the mean of its divisors is an integer number (2229120).

Almost surely, 2^56105670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56105670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71331840).

56105670 is an abundant number, since it is smaller than the sum of its proper divisors (86558010).

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

56105670 is a wasteful number, since it uses less digits than its factorization.

56105670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 56105670 is about 7490.3718198765. The cubic root of 56105670 is about 382.8267275401.

The spelling of 56105670 in words is "fifty-six million, one hundred five thousand, six hundred seventy".