56077631 has 2 divisors, whose sum is σ = 56077632. Its totient is φ = 56077630.

The previous prime is 56077591. The next prime is 56077643. The reversal of 56077631 is 13677065.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 56077631 - 2¹⁰ = 56076607 is a prime.

It is a super-2 number, since 2×56077631² = 6289401397144322, which contains 22 as substring.

It is a Chen prime.

It is equal to p_3342698 and since 56077631 and 3342698 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 56077591 and 56077600.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56077661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28038815 + 28038816.

It is an arithmetic number, because the mean of its divisors is an integer number (28038816).

Almost surely, 2^56077631 is an apocalyptic number.

56077631 is a deficient number, since it is larger than the sum of its proper divisors (1).

56077631 is an equidigital number, since it uses as much as digits as its factorization.

56077631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 56077631 is about 7488.4999165387. The cubic root of 56077631 is about 382.7629439258.

The spelling of 56077631 in words is "fifty-six million, seventy-seven thousand, six hundred thirty-one".