56687633 has 2 divisors, whose sum is σ = 56687634. Its totient is φ = 56687632.

The previous prime is 56687629. The next prime is 56687641. The reversal of 56687633 is 33678665.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49885969 + 6801664 = 7063^2 + 2608^2 .

It is a cyclic number.

It is not a de Polignac number, because 56687633 - 2² = 56687629 is a prime.

It is not a weakly prime, because it can be changed into another prime (56657633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28343816 + 28343817.

It is an arithmetic number, because the mean of its divisors is an integer number (28343817).

Almost surely, 2^56687633 is an apocalyptic number.

It is an amenable number.

56687633 is a deficient number, since it is larger than the sum of its proper divisors (1).

56687633 is an equidigital number, since it uses as much as digits as its factorization.

56687633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 544320, while the sum is 44.

The square root of 56687633 is about 7529.1190055677. The cubic root of 56687633 is about 384.1458163850.

The spelling of 56687633 in words is "fifty-six million, six hundred eighty-seven thousand, six hundred thirty-three".