55639582 has 4 divisors (see below), whose sum is σ = 83459376. Its totient is φ = 27819790.

The previous prime is 55639567. The next prime is 55639607. The reversal of 55639582 is 28593655.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13909894 + ... + 13909897.

It is an arithmetic number, because the mean of its divisors is an integer number (20864844).

Almost surely, 2^55639582 is an apocalyptic number.

55639582 is a deficient number, since it is larger than the sum of its proper divisors (27819794).

55639582 is a wasteful number, since it uses less digits than its factorization.

55639582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27819793.

The product of its digits is 324000, while the sum is 43.

The square root of 55639582 is about 7459.1944605299. The cubic root of 55639582 is about 381.7636898150.

The spelling of 55639582 in words is "fifty-five million, six hundred thirty-nine thousand, five hundred eighty-two".