55554405 has 16 divisors (see below), whose sum is σ = 89239104. Its totient is φ = 29511680.

The previous prime is 55554383. The next prime is 55554479. The reversal of 55554405 is 50445555.

It is not a de Polignac number, because 55554405 - 2⁷ = 55554277 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 3351 + ... + 11060.

It is an arithmetic number, because the mean of its divisors is an integer number (5577444).

Almost surely, 2^55554405 is an apocalyptic number.

It is an amenable number.

55554405 is a deficient number, since it is larger than the sum of its proper divisors (33684699).

55554405 is a wasteful number, since it uses less digits than its factorization.

55554405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14676.

The product of its (nonzero) digits is 50000, while the sum is 33.

The square root of 55554405 is about 7453.4827429867. The cubic root of 55554405 is about 381.5687800516.

The spelling of 55554405 in words is "fifty-five million, five hundred fifty-four thousand, four hundred five".