55724018 has 8 divisors (see below), whose sum is σ = 95526912. Its totient is φ = 23881716.

The previous prime is 55723973. The next prime is 55724027. The reversal of 55724018 is 81042755.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1990130 + ... + 1990157.

It is an arithmetic number, because the mean of its divisors is an integer number (11940864).

Almost surely, 2^55724018 is an apocalyptic number.

55724018 is a deficient number, since it is larger than the sum of its proper divisors (39802894).

55724018 is a wasteful number, since it uses less digits than its factorization.

55724018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980296.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 55724018 is about 7464.8521753615. The cubic root of 55724018 is about 381.9567077205.

The spelling of 55724018 in words is "fifty-five million, seven hundred twenty-four thousand, eighteen".