54520979 has 2 divisors, whose sum is σ = 54520980. Its totient is φ = 54520978.

The previous prime is 54520969. The next prime is 54520993. The reversal of 54520979 is 97902545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54520979 - 2¹² = 54516883 is a prime.

It is a super-2 number, since 2×54520979² = 5945074302236882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54520969) 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 as a sum of consecutive naturals, namely, 27260489 + 27260490.

It is an arithmetic number, because the mean of its divisors is an integer number (27260490).

Almost surely, 2^54520979 is an apocalyptic number.

54520979 is a deficient number, since it is larger than the sum of its proper divisors (1).

54520979 is an equidigital number, since it uses as much as digits as its factorization.

54520979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 41.

The square root of 54520979 is about 7383.8322705760. The cubic root of 54520979 is about 379.1879682004.

The spelling of 54520979 in words is "fifty-four million, five hundred twenty thousand, nine hundred seventy-nine".