54580477979 has 2 divisors, whose sum is σ = 54580477980. Its totient is φ = 54580477978.

The previous prime is 54580477891. The next prime is 54580477997. The reversal of 54580477979 is 97977408545.

Together with next prime (54580477997) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54580477979 - 2⁸ = 54580477723 is a prime.

It is a super-2 number, since 2×54580477979² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54580477999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27290238989 + 27290238990.

It is an arithmetic number, because the mean of its divisors is an integer number (27290238990).

Almost surely, 2^54580477979 is an apocalyptic number.

54580477979 is a deficient number, since it is larger than the sum of its proper divisors (1).

54580477979 is an equidigital number, since it uses as much as digits as its factorization.

54580477979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88905600, while the sum is 65.

The spelling of 54580477979 in words is "fifty-four billion, five hundred eighty million, four hundred seventy-seven thousand, nine hundred seventy-nine".