56004736537 has 2 divisors, whose sum is σ = 56004736538. Its totient is φ = 56004736536.

The previous prime is 56004736511. The next prime is 56004736549. The reversal of 56004736537 is 73563740065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55890160921 + 114575616 = 236411^2 + 10704^2 .

It is a cyclic number.

It is not a de Polignac number, because 56004736537 - 2¹⁹ = 56004212249 is a prime.

It is not a weakly prime, because it can be changed into another prime (56004736937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28002368268 + 28002368269.

It is an arithmetic number, because the mean of its divisors is an integer number (28002368269).

Almost surely, 2^56004736537 is an apocalyptic number.

It is an amenable number.

56004736537 is a deficient number, since it is larger than the sum of its proper divisors (1).

56004736537 is an equidigital number, since it uses as much as digits as its factorization.

56004736537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1587600, while the sum is 46.

The spelling of 56004736537 in words is "fifty-six billion, four million, seven hundred thirty-six thousand, five hundred thirty-seven".