56713249 has 2 divisors, whose sum is σ = 56713250. Its totient is φ = 56713248.

The previous prime is 56713211. The next prime is 56713253. The reversal of 56713249 is 94231765.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54863649 + 1849600 = 7407^2 + 1360^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56713249 is a prime.

It is a super-2 number, since 2×56713249² = 6432785224272002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (56713049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28356624 + 28356625.

It is an arithmetic number, because the mean of its divisors is an integer number (28356625).

Almost surely, 2^56713249 is an apocalyptic number.

It is an amenable number.

56713249 is a deficient number, since it is larger than the sum of its proper divisors (1).

56713249 is an equidigital number, since it uses as much as digits as its factorization.

56713249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 37.

The square root of 56713249 is about 7530.8199420780. The cubic root of 56713249 is about 384.2036702582.

The spelling of 56713249 in words is "fifty-six million, seven hundred thirteen thousand, two hundred forty-nine".