2255984557 has 2 divisors, whose sum is σ = 2255984558. Its totient is φ = 2255984556.

The previous prime is 2255984539. The next prime is 2255984561. The reversal of 2255984557 is 7554895522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1899303561 + 356680996 = 43581^2 + 18886^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2255984557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2255984567) 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, 1127992278 + 1127992279.

It is an arithmetic number, because the mean of its divisors is an integer number (1127992279).

Almost surely, 2^2255984557 is an apocalyptic number.

It is an amenable number.

2255984557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255984557 is an equidigital number, since it uses as much as digits as its factorization.

2255984557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040000, while the sum is 52.

The square root of 2255984557 is about 47497.2057809720. The cubic root of 2255984557 is about 1311.5314446109.

The spelling of 2255984557 in words is "two billion, two hundred fifty-five million, nine hundred eighty-four thousand, five hundred fifty-seven".