54540979 has 2 divisors, whose sum is σ = 54540980. Its totient is φ = 54540978.

The previous prime is 54540977. The next prime is 54540989. The reversal of 54540979 is 97904545.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54540979 - 2¹ = 54540977 is a prime.

Together with 54540977, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (54540973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27270489 + 27270490.

It is an arithmetic number, because the mean of its divisors is an integer number (27270490).

Almost surely, 2^54540979 is an apocalyptic number.

54540979 is a deficient number, since it is larger than the sum of its proper divisors (1).

54540979 is an equidigital number, since it uses as much as digits as its factorization.

54540979 is an evil number, because the sum of its binary digits is even.

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

The square root of 54540979 is about 7385.1864566848. The cubic root of 54540979 is about 379.2343285335.

The spelling of 54540979 in words is "fifty-four million, five hundred forty thousand, nine hundred seventy-nine".