55487494 has 32 divisors (see below), whose sum is σ = 88646400. Its totient is φ = 26016480.

The previous prime is 55487479. The next prime is 55487503. The reversal of 55487494 is 49478455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309897 + ... + 310075.

It is an arithmetic number, because the mean of its divisors is an integer number (2770200).

Almost surely, 2^55487494 is an apocalyptic number.

55487494 is a deficient number, since it is larger than the sum of its proper divisors (33158906).

55487494 is a wasteful number, since it uses less digits than its factorization.

55487494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348.

The product of its digits is 806400, while the sum is 46.

The square root of 55487494 is about 7448.9928178244. The cubic root of 55487494 is about 381.4155284441.

The spelling of 55487494 in words is "fifty-five million, four hundred eighty-seven thousand, four hundred ninety-four".