56523017 has 2 divisors, whose sum is σ = 56523018. Its totient is φ = 56523016.

The previous prime is 56523007. The next prime is 56523037. The reversal of 56523017 is 71032565.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56490256 + 32761 = 7516^2 + 181^2 .

It is a cyclic number.

It is not a de Polignac number, because 56523017 - 2⁶ = 56522953 is a prime.

It is a super-3 number, since 3×56523017³ (a number of 24 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (56523007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28261508 + 28261509.

It is an arithmetic number, because the mean of its divisors is an integer number (28261509).

Almost surely, 2^56523017 is an apocalyptic number.

It is an amenable number.

56523017 is a deficient number, since it is larger than the sum of its proper divisors (1).

56523017 is an equidigital number, since it uses as much as digits as its factorization.

56523017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 29.

The square root of 56523017 is about 7518.1791013516. The cubic root of 56523017 is about 383.7736137577.

The spelling of 56523017 in words is "fifty-six million, five hundred twenty-three thousand, seventeen".