56638259 has 8 divisors (see below), whose sum is σ = 62211840. Its totient is φ = 51323976.

The previous prime is 56638223. The next prime is 56638277. The reversal of 56638259 is 95283665.

It is a happy number.

56638259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 56638259 - 2⁸ = 56638003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56638279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64367 + ... + 65240.

It is an arithmetic number, because the mean of its divisors is an integer number (7776480).

Almost surely, 2^56638259 is an apocalyptic number.

56638259 is a deficient number, since it is larger than the sum of its proper divisors (5573581).

56638259 is a wasteful number, since it uses less digits than its factorization.

56638259 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129649.

The product of its digits is 388800, while the sum is 44.

The square root of 56638259 is about 7525.8394216194. The cubic root of 56638259 is about 384.0342557512.

The spelling of 56638259 in words is "fifty-six million, six hundred thirty-eight thousand, two hundred fifty-nine".