56506937 has 2 divisors, whose sum is σ = 56506938. Its totient is φ = 56506936.

The previous prime is 56506913. The next prime is 56506943. The reversal of 56506937 is 73960565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54479161 + 2027776 = 7381^2 + 1424^2 .

It is a cyclic number.

It is not a de Polignac number, because 56506937 - 2⁶ = 56506873 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 56506894 and 56506903.

It is not a weakly prime, because it can be changed into another prime (56506987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28253468 + 28253469.

It is an arithmetic number, because the mean of its divisors is an integer number (28253469).

Almost surely, 2^56506937 is an apocalyptic number.

It is an amenable number.

56506937 is a deficient number, since it is larger than the sum of its proper divisors (1).

56506937 is an equidigital number, since it uses as much as digits as its factorization.

56506937 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 170100, while the sum is 41.

The square root of 56506937 is about 7517.1096173995. The cubic root of 56506937 is about 383.7372175819.

The spelling of 56506937 in words is "fifty-six million, five hundred six thousand, nine hundred thirty-seven".