56342161 has 2 divisors, whose sum is σ = 56342162. Its totient is φ = 56342160.

The previous prime is 56342147. The next prime is 56342171. The reversal of 56342161 is 16124365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55651600 + 690561 = 7460^2 + 831^2 .

It is a cyclic number.

It is not a de Polignac number, because 56342161 - 2¹⁹ = 55817873 is a prime.

It is a super-2 number, since 2×56342161² = 6348878212299842, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56342141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28171080 + 28171081.

It is an arithmetic number, because the mean of its divisors is an integer number (28171081).

Almost surely, 2^56342161 is an apocalyptic number.

It is an amenable number.

56342161 is a deficient number, since it is larger than the sum of its proper divisors (1).

56342161 is an equidigital number, since it uses as much as digits as its factorization.

56342161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 56342161 is about 7506.1415520892. The cubic root of 56342161 is about 383.3638578507.

It can be divided in two parts, 563 and 42161, that added together give a palindrome (42724).

The spelling of 56342161 in words is "fifty-six million, three hundred forty-two thousand, one hundred sixty-one".