56634559 has 2 divisors, whose sum is σ = 56634560. Its totient is φ = 56634558.

The previous prime is 56634541. The next prime is 56634601. The reversal of 56634559 is 95543665.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 56634559 - 2¹⁷ = 56503487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56634509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28317279 + 28317280.

It is an arithmetic number, because the mean of its divisors is an integer number (28317280).

Almost surely, 2^56634559 is an apocalyptic number.

56634559 is a deficient number, since it is larger than the sum of its proper divisors (1).

56634559 is an equidigital number, since it uses as much as digits as its factorization.

56634559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 486000, while the sum is 43.

The square root of 56634559 is about 7525.5935978499. The cubic root of 56634559 is about 384.0258929842.

The spelling of 56634559 in words is "fifty-six million, six hundred thirty-four thousand, five hundred fifty-nine".