55580499 has 20 divisors (see below), whose sum is σ = 89416096. Its totient is φ = 34202736.

The previous prime is 55580479. The next prime is 55580513. The reversal of 55580499 is 99408555.

55580499 is a `hidden beast` number, since 5 + 558 + 0 + 4 + 99 = 666.

It is not a de Polignac number, because 55580499 - 2¹¹ = 55578451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55580479) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25339 + ... + 27444.

Almost surely, 2^55580499 is an apocalyptic number.

55580499 is a deficient number, since it is larger than the sum of its proper divisors (33835597).

55580499 is a wasteful number, since it uses less digits than its factorization.

55580499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52808 (or 52799 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 45.

The square root of 55580499 is about 7455.2329943470. The cubic root of 55580499 is about 381.6285118722.

The spelling of 55580499 in words is "fifty-five million, five hundred eighty thousand, four hundred ninety-nine".