54252979 has 4 divisors (see below), whose sum is σ = 59185080. Its totient is φ = 49320880.

The previous prime is 54252911. The next prime is 54253009. The reversal of 54252979 is 97925245.

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-54252979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54252179) 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, 2466034 + ... + 2466055.

It is an arithmetic number, because the mean of its divisors is an integer number (14796270).

Almost surely, 2^54252979 is an apocalyptic number.

54252979 is a deficient number, since it is larger than the sum of its proper divisors (4932101).

54252979 is a wasteful number, since it uses less digits than its factorization.

54252979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4932100.

The product of its digits is 226800, while the sum is 43.

The square root of 54252979 is about 7365.6621562491. The cubic root of 54252979 is about 378.5656429772.

The spelling of 54252979 in words is "fifty-four million, two hundred fifty-two thousand, nine hundred seventy-nine".