56541257 has 2 divisors, whose sum is σ = 56541258. Its totient is φ = 56541256.

The previous prime is 56541239. The next prime is 56541299. The reversal of 56541257 is 75214565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54479161 + 2062096 = 7381^2 + 1436^2 .

It is a cyclic number.

It is not a de Polignac number, because 56541257 - 2⁶ = 56541193 is a prime.

It is equal to p_3368636 and since 56541257 and 3368636 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (56541227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28270628 + 28270629.

It is an arithmetic number, because the mean of its divisors is an integer number (28270629).

Almost surely, 2^56541257 is an apocalyptic number.

It is an amenable number.

56541257 is a deficient number, since it is larger than the sum of its proper divisors (1).

56541257 is an equidigital number, since it uses as much as digits as its factorization.

56541257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42000, while the sum is 35.

The square root of 56541257 is about 7519.3920631923. The cubic root of 56541257 is about 383.8148906171.

The spelling of 56541257 in words is "fifty-six million, five hundred forty-one thousand, two hundred fifty-seven".