56161022 has 4 divisors (see below), whose sum is σ = 84241536. Its totient is φ = 28080510.

The previous prime is 56160997. The next prime is 56161031. The reversal of 56161022 is 22016165.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14040254 + ... + 14040257.

It is an arithmetic number, because the mean of its divisors is an integer number (21060384).

Almost surely, 2^56161022 is an apocalyptic number.

56161022 is a deficient number, since it is larger than the sum of its proper divisors (28080514).

56161022 is a wasteful number, since it uses less digits than its factorization.

56161022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28080513.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 56161022 is about 7494.0657856734. The cubic root of 56161022 is about 382.9525808945.

Adding to 56161022 its reverse (22016165), we get a palindrome (78177187).

The spelling of 56161022 in words is "fifty-six million, one hundred sixty-one thousand, twenty-two".