56161230 has 32 divisors (see below), whose sum is σ = 134987904. Its totient is φ = 14954016.

The previous prime is 56161219. The next prime is 56161247. The reversal of 56161230 is 3216165.

It is a super-2 number, since 2×56161230² = 6308167510225800, which contains 22 as substring.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 56161230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32857 + ... + 34523.

It is an arithmetic number, because the mean of its divisors is an integer number (4218372).

Almost surely, 2^56161230 is an apocalyptic number.

56161230 is an abundant number, since it is smaller than the sum of its proper divisors (78826674).

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

56161230 is a wasteful number, since it uses less digits than its factorization.

56161230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 56161230 is about 7494.0796633076. The cubic root of 56161230 is about 382.9530536663.

Adding to 56161230 its reverse (3216165), we get a palindrome (59377395).

The spelling of 56161230 in words is "fifty-six million, one hundred sixty-one thousand, two hundred thirty".