55554998 has 4 divisors (see below), whose sum is σ = 83332500. Its totient is φ = 27777498.

The previous prime is 55554953. The next prime is 55555001. The reversal of 55554998 is 89945555.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13888748 + ... + 13888751.

It is an arithmetic number, because the mean of its divisors is an integer number (20833125).

Almost surely, 2^55554998 is an apocalyptic number.

55554998 is a deficient number, since it is larger than the sum of its proper divisors (27777502).

55554998 is a wasteful number, since it uses less digits than its factorization.

55554998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27777501.

The product of its digits is 1620000, while the sum is 50.

The square root of 55554998 is about 7453.5225229418. The cubic root of 55554998 is about 381.5701376966.

The spelling of 55554998 in words is "fifty-five million, five hundred fifty-four thousand, nine hundred ninety-eight".