56161012 has 12 divisors (see below), whose sum is σ = 98360640. Its totient is φ = 28057976.

The previous prime is 56160997. The next prime is 56161031. The reversal of 56161012 is 21016165.

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 3 ways as a sum of consecutive naturals, for example, 789 + ... + 10627.

It is an arithmetic number, because the mean of its divisors is an integer number (8196720).

Almost surely, 2^56161012 is an apocalyptic number.

It is an amenable number.

56161012 is a deficient number, since it is larger than the sum of its proper divisors (42199628).

56161012 is a wasteful number, since it uses less digits than its factorization.

56161012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11270 (or 11268 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 56161012 is about 7494.0651184788. The cubic root of 56161012 is about 382.9525581651.

Adding to 56161012 its reverse (21016165), we get a palindrome (77177177).

The spelling of 56161012 in words is "fifty-six million, one hundred sixty-one thousand, twelve".