56588557 has 2 divisors, whose sum is σ = 56588558. Its totient is φ = 56588556.

The previous prime is 56588551. The next prime is 56588591. The reversal of 56588557 is 75588565.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34035556 + 22553001 = 5834^2 + 4749^2 .

It is a cyclic number.

It is not a de Polignac number, because 56588557 - 2¹⁵ = 56555789 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56588557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56588551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28294278 + 28294279.

It is an arithmetic number, because the mean of its divisors is an integer number (28294279).

Almost surely, 2^56588557 is an apocalyptic number.

It is an amenable number.

56588557 is a deficient number, since it is larger than the sum of its proper divisors (1).

56588557 is an equidigital number, since it uses as much as digits as its factorization.

56588557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680000, while the sum is 49.

The square root of 56588557 is about 7522.5366067571. The cubic root of 56588557 is about 383.9218884993.

The spelling of 56588557 in words is "fifty-six million, five hundred eighty-eight thousand, five hundred fifty-seven".