56045537 has 2 divisors, whose sum is σ = 56045538. Its totient is φ = 56045536.

The previous prime is 56045513. The next prime is 56045543. The reversal of 56045537 is 73554065.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49900096 + 6145441 = 7064^2 + 2479^2 .

It is a cyclic number.

It is not a de Polignac number, because 56045537 - 2⁸ = 56045281 is a prime.

It is a super-2 number, since 2×56045537² = 6282204435236738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 56045497 and 56045506.

It is not a weakly prime, because it can be changed into another prime (56045557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28022768 + 28022769.

It is an arithmetic number, because the mean of its divisors is an integer number (28022769).

Almost surely, 2^56045537 is an apocalyptic number.

It is an amenable number.

56045537 is a deficient number, since it is larger than the sum of its proper divisors (1).

56045537 is an equidigital number, since it uses as much as digits as its factorization.

56045537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63000, while the sum is 35.

The square root of 56045537 is about 7486.3567240681. The cubic root of 56045537 is about 382.6899098243.

The spelling of 56045537 in words is "fifty-six million, forty-five thousand, five hundred thirty-seven".