56666053 has 2 divisors, whose sum is σ = 56666054. Its totient is φ = 56666052.

The previous prime is 56666017. The next prime is 56666081. The reversal of 56666053 is 35066665.

It is a happy number.

56666053 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 40360609 + 16305444 = 6353^2 + 4038^2 .

It is a cyclic number.

It is not a de Polignac number, because 56666053 - 2⁹ = 56665541 is a prime.

It is a super-2 number, since 2×56666053² = 6422083125197618, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56666653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28333026 + 28333027.

It is an arithmetic number, because the mean of its divisors is an integer number (28333027).

Almost surely, 2^56666053 is an apocalyptic number.

It is an amenable number.

56666053 is a deficient number, since it is larger than the sum of its proper divisors (1).

56666053 is an equidigital number, since it uses as much as digits as its factorization.

56666053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 37.

The square root of 56666053 is about 7527.6857665553. The cubic root of 56666053 is about 384.0970643119.

The spelling of 56666053 in words is "fifty-six million, six hundred sixty-six thousand, fifty-three".