55567264901 has 2 divisors, whose sum is σ = 55567264902. Its totient is φ = 55567264900.

The previous prime is 55567264873. The next prime is 55567264903. The reversal of 55567264901 is 10946276555.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32417642401 + 23149622500 = 180049^2 + 152150^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55567264901 is a prime.

Together with 55567264903, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55567264901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55567264903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27783632450 + 27783632451.

It is an arithmetic number, because the mean of its divisors is an integer number (27783632451).

Almost surely, 2^55567264901 is an apocalyptic number.

It is an amenable number.

55567264901 is a deficient number, since it is larger than the sum of its proper divisors (1).

55567264901 is an equidigital number, since it uses as much as digits as its factorization.

55567264901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2268000, while the sum is 50.

The spelling of 55567264901 in words is "fifty-five billion, five hundred sixty-seven million, two hundred sixty-four thousand, nine hundred one".