56553247 has 2 divisors, whose sum is σ = 56553248. Its totient is φ = 56553246.

The previous prime is 56553241. The next prime is 56553257. The reversal of 56553247 is 74235565.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56553247 - 2³ = 56553239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56553241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28276623 + 28276624.

It is an arithmetic number, because the mean of its divisors is an integer number (28276624).

Almost surely, 2^56553247 is an apocalyptic number.

56553247 is a deficient number, since it is larger than the sum of its proper divisors (1).

56553247 is an equidigital number, since it uses as much as digits as its factorization.

56553247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 126000, while the sum is 37.

The square root of 56553247 is about 7520.1892928303. The cubic root of 56553247 is about 383.8420189804.

The spelling of 56553247 in words is "fifty-six million, five hundred fifty-three thousand, two hundred forty-seven".