55860238 has 32 divisors (see below), whose sum is σ = 100440576. Its totient is φ = 22781088.

The previous prime is 55860221. The next prime is 55860239. The reversal of 55860238 is 83206855.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 55860197 and 55860206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55860239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90820 + ... + 91432.

It is an arithmetic number, because the mean of its divisors is an integer number (3138768).

Almost surely, 2^55860238 is an apocalyptic number.

55860238 is a deficient number, since it is larger than the sum of its proper divisors (44580338).

55860238 is a wasteful number, since it uses less digits than its factorization.

55860238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 55860238 is about 7473.9706983638. The cubic root of 55860238 is about 382.2676915378.

The spelling of 55860238 in words is "fifty-five million, eight hundred sixty thousand, two hundred thirty-eight".