56223161 has 2 divisors, whose sum is σ = 56223162. Its totient is φ = 56223160.

The previous prime is 56223149. The next prime is 56223173. The reversal of 56223161 is 16132265.

It is a balanced prime because it is at equal distance from previous prime (56223149) and next prime (56223173).

It can be written as a sum of positive squares in only one way, i.e., 49561600 + 6661561 = 7040^2 + 2581^2 .

It is a cyclic number.

It is not a de Polignac number, because 56223161 - 2¹⁰ = 56222137 is a prime.

It is a super-2 number, since 2×56223161² = 6322087665663842, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56223161.

It is not a weakly prime, because it can be changed into another prime (56223191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28111580 + 28111581.

It is an arithmetic number, because the mean of its divisors is an integer number (28111581).

Almost surely, 2^56223161 is an apocalyptic number.

It is an amenable number.

56223161 is a deficient number, since it is larger than the sum of its proper divisors (1).

56223161 is an equidigital number, since it uses as much as digits as its factorization.

56223161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160, while the sum is 26.

The square root of 56223161 is about 7498.2105198507. The cubic root of 56223161 is about 383.0937673055.

The spelling of 56223161 in words is "fifty-six million, two hundred twenty-three thousand, one hundred sixty-one".