54892979 has 4 divisors (see below), whose sum is σ = 55458984. Its totient is φ = 54326976.

The previous prime is 54892961. The next prime is 54892987. The reversal of 54892979 is 97929845.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54892979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 54892979.

It is not an unprimeable number, because it can be changed into a prime (54892379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282857 + ... + 283050.

It is an arithmetic number, because the mean of its divisors is an integer number (13864746).

Almost surely, 2^54892979 is an apocalyptic number.

54892979 is a deficient number, since it is larger than the sum of its proper divisors (566005).

54892979 is an equidigital number, since it uses as much as digits as its factorization.

54892979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566004.

The product of its digits is 1632960, while the sum is 53.

The square root of 54892979 is about 7408.9796193538. The cubic root of 54892979 is about 380.0484218074.

It can be divided in two parts, 5 and 4892979, that added together give a palindrome (4892984).

The spelling of 54892979 in words is "fifty-four million, eight hundred ninety-two thousand, nine hundred seventy-nine".