56500238 has 16 divisors (see below), whose sum is σ = 86800896. Its totient is φ = 27574680.

The previous prime is 56500217. The next prime is 56500253. The reversal of 56500238 is 83200565.

It is a self number, because there is not a number n which added to its sum of digits gives 56500238.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12695 + ... + 16557.

It is an arithmetic number, because the mean of its divisors is an integer number (5425056).

Almost surely, 2^56500238 is an apocalyptic number.

56500238 is a deficient number, since it is larger than the sum of its proper divisors (30300658).

56500238 is a wasteful number, since it uses less digits than its factorization.

56500238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4039.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 56500238 is about 7516.6640206943. The cubic root of 56500238 is about 383.7220527346.

The spelling of 56500238 in words is "fifty-six million, five hundred thousand, two hundred thirty-eight".