54979399 has 8 divisors (see below), whose sum is σ = 56956032. Its totient is φ = 53015520.

The previous prime is 54979387. The next prime is 54979403. The reversal of 54979399 is 99397945.

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

It is a cyclic number.

It is not a de Polignac number, because 54979399 - 2⁹ = 54978887 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 (54979349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6057 + ... + 12109.

It is an arithmetic number, because the mean of its divisors is an integer number (7119504).

Almost surely, 2^54979399 is an apocalyptic number.

54979399 is a deficient number, since it is larger than the sum of its proper divisors (1976633).

54979399 is a wasteful number, since it uses less digits than its factorization.

54979399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6377.

The product of its digits is 2755620, while the sum is 55.

The square root of 54979399 is about 7414.8094378750. The cubic root of 54979399 is about 380.2477585565.

The spelling of 54979399 in words is "fifty-four million, nine hundred seventy-nine thousand, three hundred ninety-nine".