56552257 has 2 divisors, whose sum is σ = 56552258. Its totient is φ = 56552256.

The previous prime is 56552231. The next prime is 56552269. The reversal of 56552257 is 75225565.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56490256 + 62001 = 7516^2 + 249^2 .

It is a cyclic number.

It is not a de Polignac number, because 56552257 - 2¹¹ = 56550209 is a prime.

It is not a weakly prime, because it can be changed into another prime (56552957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28276128 + 28276129.

It is an arithmetic number, because the mean of its divisors is an integer number (28276129).

Almost surely, 2^56552257 is an apocalyptic number.

It is an amenable number.

56552257 is a deficient number, since it is larger than the sum of its proper divisors (1).

56552257 is an equidigital number, since it uses as much as digits as its factorization.

56552257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105000, while the sum is 37.

The square root of 56552257 is about 7520.1234697311. The cubic root of 56552257 is about 383.8397791690.

The spelling of 56552257 in words is "fifty-six million, five hundred fifty-two thousand, two hundred fifty-seven".