2255855587 has 2 divisors, whose sum is σ = 2255855588. Its totient is φ = 2255855586.

The previous prime is 2255855549. The next prime is 2255855639. The reversal of 2255855587 is 7855585522.

It is a happy number.

It is an a-pointer prime, because the next prime (2255855639) can be obtained adding 2255855587 to its sum of digits (52).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2255855587 is a prime.

It is a super-2 number, since 2×2255855587² = 10177768858798229138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2255855527) 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, 1127927793 + 1127927794.

It is an arithmetic number, because the mean of its divisors is an integer number (1127927794).

Almost surely, 2^2255855587 is an apocalyptic number.

2255855587 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255855587 is an equidigital number, since it uses as much as digits as its factorization.

2255855587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5600000, while the sum is 52.

The square root of 2255855587 is about 47495.8481027553. The cubic root of 2255855587 is about 1311.5064516157.

The spelling of 2255855587 in words is "two billion, two hundred fifty-five million, eight hundred fifty-five thousand, five hundred eighty-seven".