56538190 has 8 divisors (see below), whose sum is σ = 101768760. Its totient is φ = 22615272.

The previous prime is 56538187. The next prime is 56538217. The reversal of 56538190 is 9183565.

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

It is a super-2 number, since 2×56538190² = 6393133856952200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2826900 + ... + 2826919.

It is an arithmetic number, because the mean of its divisors is an integer number (12721095).

Almost surely, 2^56538190 is an apocalyptic number.

56538190 is a deficient number, since it is larger than the sum of its proper divisors (45230570).

56538190 is a wasteful number, since it uses less digits than its factorization.

56538190 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5653826.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 56538190 is about 7519.1881210673. The cubic root of 56538190 is about 383.8079506608.

The spelling of 56538190 in words is "fifty-six million, five hundred thirty-eight thousand, one hundred ninety".