55124918657 has 2 divisors, whose sum is σ = 55124918658. Its totient is φ = 55124918656.

The previous prime is 55124918603. The next prime is 55124918683. The reversal of 55124918657 is 75681942155.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42086932801 + 13037985856 = 205151^2 + 114184^2 .

It is a cyclic number.

It is not a de Polignac number, because 55124918657 - 2²² = 55120724353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 55124918599 and 55124918608.

It is not a weakly prime, because it can be changed into another prime (55124911657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27562459328 + 27562459329.

It is an arithmetic number, because the mean of its divisors is an integer number (27562459329).

Almost surely, 2^55124918657 is an apocalyptic number.

It is an amenable number.

55124918657 is a deficient number, since it is larger than the sum of its proper divisors (1).

55124918657 is an equidigital number, since it uses as much as digits as its factorization.

55124918657 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024000, while the sum is 53.

The spelling of 55124918657 in words is "fifty-five billion, one hundred twenty-four million, nine hundred eighteen thousand, six hundred fifty-seven".