56339977 has 2 divisors, whose sum is σ = 56339978. Its totient is φ = 56339976.

The previous prime is 56339951. The next prime is 56340001. The reversal of 56339977 is 77993365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56235001 + 104976 = 7499^2 + 324^2 .

It is a cyclic number.

It is not a de Polignac number, because 56339977 - 2¹¹ = 56337929 is a prime.

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 56339977.

It is not a weakly prime, because it can be changed into another prime (56339917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28169988 + 28169989.

It is an arithmetic number, because the mean of its divisors is an integer number (28169989).

Almost surely, 2^56339977 is an apocalyptic number.

It is an amenable number.

56339977 is a deficient number, since it is larger than the sum of its proper divisors (1).

56339977 is an equidigital number, since it uses as much as digits as its factorization.

56339977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1071630, while the sum is 49.

The square root of 56339977 is about 7505.9960698098. The cubic root of 56339977 is about 383.3589043223.

The spelling of 56339977 in words is "fifty-six million, three hundred thirty-nine thousand, nine hundred seventy-seven".