2255232157 has 2 divisors, whose sum is σ = 2255232158. Its totient is φ = 2255232156.

The previous prime is 2255232139. The next prime is 2255232167. The reversal of 2255232157 is 7512325522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2102314201 + 152917956 = 45851^2 + 12366^2 .

It is a cyclic number.

It is not a de Polignac number, because 2255232157 - 2¹⁵ = 2255199389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2255232167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1127616078 + 1127616079.

It is an arithmetic number, because the mean of its divisors is an integer number (1127616079).

Almost surely, 2^2255232157 is an apocalyptic number.

It is an amenable number.

2255232157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2255232157 is an equidigital number, since it uses as much as digits as its factorization.

2255232157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42000, while the sum is 34.

The square root of 2255232157 is about 47489.2846545408. The cubic root of 2255232157 is about 1311.3856241709.

Adding to 2255232157 its reverse (7512325522), we get a palindrome (9767557679).

The spelling of 2255232157 in words is "two billion, two hundred fifty-five million, two hundred thirty-two thousand, one hundred fifty-seven".