55491358 has 8 divisors (see below), whose sum is σ = 89639928. Its totient is φ = 25611384.

The previous prime is 55491323. The next prime is 55491391. The reversal of 55491358 is 85319455.

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

It is a self number, because there is not a number n which added to its sum of digits gives 55491358.

It is a congruent number.

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, 1067116 + ... + 1067167.

It is an arithmetic number, because the mean of its divisors is an integer number (11204991).

Almost surely, 2^55491358 is an apocalyptic number.

55491358 is a deficient number, since it is larger than the sum of its proper divisors (34148570).

55491358 is a wasteful number, since it uses less digits than its factorization.

55491358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134298.

The product of its digits is 108000, while the sum is 40.

The square root of 55491358 is about 7449.2521772323. The cubic root of 55491358 is about 381.4243818228.

The spelling of 55491358 in words is "fifty-five million, four hundred ninety-one thousand, three hundred fifty-eight".