54998399 has 4 divisors (see below), whose sum is σ = 55013640. Its totient is φ = 54983160.

The previous prime is 54998387. The next prime is 54998423. The reversal of 54998399 is 99389945.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 54998399 - 2⁸ = 54998143 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 (54998599) 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 3 ways as a sum of consecutive naturals, for example, 1184 + ... + 10554.

It is an arithmetic number, because the mean of its divisors is an integer number (13753410).

Almost surely, 2^54998399 is an apocalyptic number.

54998399 is a deficient number, since it is larger than the sum of its proper divisors (15241).

54998399 is an equidigital number, since it uses as much as digits as its factorization.

54998399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15240.

The product of its digits is 3149280, while the sum is 56.

The square root of 54998399 is about 7416.0905469122. The cubic root of 54998399 is about 380.2915560240.

The spelling of 54998399 in words is "fifty-four million, nine hundred ninety-eight thousand, three hundred ninety-nine".