56558959 has 2 divisors, whose sum is σ = 56558960. Its totient is φ = 56558958.

The previous prime is 56558947. The next prime is 56559011. The reversal of 56558959 is 95985565.

It is a happy number.

It is an a-pointer prime, because the next prime (56559011) can be obtained adding 56558959 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56558959 - 2²¹ = 54461807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56558059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28279479 + 28279480.

It is an arithmetic number, because the mean of its divisors is an integer number (28279480).

Almost surely, 2^56558959 is an apocalyptic number.

56558959 is a deficient number, since it is larger than the sum of its proper divisors (1).

56558959 is an equidigital number, since it uses as much as digits as its factorization.

56558959 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2430000, while the sum is 52.

The square root of 56558959 is about 7520.5690609155. The cubic root of 56558959 is about 383.8549415028.

The spelling of 56558959 in words is "fifty-six million, five hundred fifty-eight thousand, nine hundred fifty-nine".