55132518 has 32 divisors (see below), whose sum is σ = 131498496. Its totient is φ = 15067008.

The previous prime is 55132507. The next prime is 55132531. The reversal of 55132518 is 81523155.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27571 + ... + 29502.

It is an arithmetic number, because the mean of its divisors is an integer number (4109328).

Almost surely, 2^55132518 is an apocalyptic number.

55132518 is an abundant number, since it is smaller than the sum of its proper divisors (76365978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55132518 is a wasteful number, since it uses less digits than its factorization.

55132518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57108.

The product of its digits is 6000, while the sum is 30.

The square root of 55132518 is about 7425.1274736532. The cubic root of 55132518 is about 380.6004311945.

The spelling of 55132518 in words is "fifty-five million, one hundred thirty-two thousand, five hundred eighteen".