55555479 has 12 divisors (see below), whose sum is σ = 91710736. Its totient is φ = 31745952.

The previous prime is 55555459. The next prime is 55555481. The reversal of 55555479 is 97455555.

55555479 is a `hidden beast` number, since 55 + 55 + 547 + 9 = 666.

It is not a de Polignac number, because 55555479 - 2⁷ = 55555351 is a prime.

It is a super-2 number, since 2×55555479² = 6172822493838882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440854 + ... + 440979.

Almost surely, 2^55555479 is an apocalyptic number.

55555479 is a deficient number, since it is larger than the sum of its proper divisors (36155257).

55555479 is a wasteful number, since it uses less digits than its factorization.

55555479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881846 (or 881843 counting only the distinct ones).

The product of its digits is 787500, while the sum is 45.

The square root of 55555479 is about 7453.5547894947. The cubic root of 55555479 is about 381.5712389159.

The spelling of 55555479 in words is "fifty-five million, five hundred fifty-five thousand, four hundred seventy-nine".