54667979 has 2 divisors, whose sum is σ = 54667980. Its totient is φ = 54667978.

The previous prime is 54667933. The next prime is 54667993. The reversal of 54667979 is 97976645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54667979 - 2²⁰ = 53619403 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 54667979.

It is not a weakly prime, because it can be changed into another prime (54667079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27333989 + 27333990.

It is an arithmetic number, because the mean of its divisors is an integer number (27333990).

Almost surely, 2^54667979 is an apocalyptic number.

54667979 is a deficient number, since it is larger than the sum of its proper divisors (1).

54667979 is an equidigital number, since it uses as much as digits as its factorization.

54667979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2857680, while the sum is 53.

The square root of 54667979 is about 7393.7797505741. The cubic root of 54667979 is about 379.5284524880.

The spelling of 54667979 in words is "fifty-four million, six hundred sixty-seven thousand, nine hundred seventy-nine".