56610553 has 2 divisors, whose sum is σ = 56610554. Its totient is φ = 56610552.

The previous prime is 56610539. The next prime is 56610563. The reversal of 56610553 is 35501665.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55234624 + 1375929 = 7432^2 + 1173^2 .

It is a cyclic number.

It is not a de Polignac number, because 56610553 - 2⁹ = 56610041 is a prime.

It is not a weakly prime, because it can be changed into another prime (56610503) 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, 28305276 + 28305277.

It is an arithmetic number, because the mean of its divisors is an integer number (28305277).

Almost surely, 2^56610553 is an apocalyptic number.

It is an amenable number.

56610553 is a deficient number, since it is larger than the sum of its proper divisors (1).

56610553 is an equidigital number, since it uses as much as digits as its factorization.

56610553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 56610553 is about 7523.9984715575. The cubic root of 56610553 is about 383.9716255980.

The spelling of 56610553 in words is "fifty-six million, six hundred ten thousand, five hundred fifty-three".