56224830 has 40 divisors (see below), whose sum is σ = 138687912. Its totient is φ = 14588064.

The previous prime is 56224813. The next prime is 56224841. The reversal of 56224830 is 3842265.

It is a super-2 number, since 2×56224830² = 6322463017057800, which contains 22 as substring.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1519572 + ... + 1519608.

Almost surely, 2^56224830 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56224830, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69343956).

56224830 is an abundant number, since it is smaller than the sum of its proper divisors (82463082).

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

56224830 is an frugal number, since it uses more digits than its factorization.

56224830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 56224830 is about 7498.3218122457. The cubic root of 56224830 is about 383.0975580159.

Multiplying 56224830 by its sum of digits (30), we get a square (1686744900 = 41070²).

56224830 divided by its sum of digits (30) gives a 4-th power (1874161 = 37⁴).

The spelling of 56224830 in words is "fifty-six million, two hundred twenty-four thousand, eight hundred thirty".