54998999 has 8 divisors (see below), whose sum is σ = 61462800. Its totient is φ = 48779200.

The previous prime is 54998989. The next prime is 54999011. The reversal of 54998999 is 99989945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54998999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54998959) 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 7 ways as a sum of consecutive naturals, for example, 60524 + ... + 61425.

It is an arithmetic number, because the mean of its divisors is an integer number (7682850).

Almost surely, 2^54998999 is an apocalyptic number.

54998999 is a deficient number, since it is larger than the sum of its proper divisors (6463801).

54998999 is a wasteful number, since it uses less digits than its factorization.

54998999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122001.

The product of its digits is 9447840, while the sum is 62.

The square root of 54998999 is about 7416.1309993824. The cubic root of 54998999 is about 380.2929389376.

The spelling of 54998999 in words is "fifty-four million, nine hundred ninety-eight thousand, nine hundred ninety-nine".