56889659 has 2 divisors, whose sum is σ = 56889660. Its totient is φ = 56889658.

The previous prime is 56889643. The next prime is 56889697. The reversal of 56889659 is 95698865.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56889659 - 2⁴ = 56889643 is a prime.

It is a super-2 number, since 2×56889659² = 6472866602272562, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56885659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28444829 + 28444830.

It is an arithmetic number, because the mean of its divisors is an integer number (28444830).

Almost surely, 2^56889659 is an apocalyptic number.

56889659 is a deficient number, since it is larger than the sum of its proper divisors (1).

56889659 is an equidigital number, since it uses as much as digits as its factorization.

56889659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4665600, while the sum is 56.

The square root of 56889659 is about 7542.5233841202. The cubic root of 56889659 is about 384.6016208644.

The spelling of 56889659 in words is "fifty-six million, eight hundred eighty-nine thousand, six hundred fifty-nine".