55100560457 has 2 divisors, whose sum is σ = 55100560458. Its totient is φ = 55100560456.

The previous prime is 55100560453. The next prime is 55100560477. The reversal of 55100560457 is 75406500155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39229348096 + 15871212361 = 198064^2 + 125981^2 .

It is a cyclic number.

It is not a de Polignac number, because 55100560457 - 2² = 55100560453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55100560457.

It is not a weakly prime, because it can be changed into another prime (55100560451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27550280228 + 27550280229.

It is an arithmetic number, because the mean of its divisors is an integer number (27550280229).

Almost surely, 2^55100560457 is an apocalyptic number.

It is an amenable number.

55100560457 is a deficient number, since it is larger than the sum of its proper divisors (1).

55100560457 is an equidigital number, since it uses as much as digits as its factorization.

55100560457 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 105000, while the sum is 38.

The spelling of 55100560457 in words is "fifty-five billion, one hundred million, five hundred sixty thousand, four hundred fifty-seven".