56392157 has 2 divisors, whose sum is σ = 56392158. Its totient is φ = 56392156.

The previous prime is 56392123. The next prime is 56392183. The reversal of 56392157 is 75129365.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44702596 + 11689561 = 6686^2 + 3419^2 .

It is a cyclic number.

It is not a de Polignac number, because 56392157 - 2¹⁰ = 56391133 is a prime.

It is a super-2 number, since 2×56392157² = 6360150742225298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56392157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56392117) by changing a digit.

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, 28196078 + 28196079.

It is an arithmetic number, because the mean of its divisors is an integer number (28196079).

Almost surely, 2^56392157 is an apocalyptic number.

It is an amenable number.

56392157 is a deficient number, since it is larger than the sum of its proper divisors (1).

56392157 is an equidigital number, since it uses as much as digits as its factorization.

56392157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56700, while the sum is 38.

The square root of 56392157 is about 7509.4711531505. The cubic root of 56392157 is about 383.4772187432.

The spelling of 56392157 in words is "fifty-six million, three hundred ninety-two thousand, one hundred fifty-seven".