55555598 has 16 divisors (see below), whose sum is σ = 97265664. Its totient is φ = 23302680.

The previous prime is 55555579. The next prime is 55555631. The reversal of 55555598 is 89555555.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41558 + ... + 42873.

It is an arithmetic number, because the mean of its divisors is an integer number (6079104).

Almost surely, 2^55555598 is an apocalyptic number.

55555598 is a deficient number, since it is larger than the sum of its proper divisors (41710066).

55555598 is a wasteful number, since it uses less digits than its factorization.

55555598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84487.

The product of its digits is 1125000, while the sum is 47.

The square root of 55555598 is about 7453.5627722586. The cubic root of 55555598 is about 381.5715113579.

The spelling of 55555598 in words is "fifty-five million, five hundred fifty-five thousand, five hundred ninety-eight".