255558253 has 2 divisors, whose sum is σ = 255558254. Its totient is φ = 255558252.

The previous prime is 255558187. The next prime is 255558287. The reversal of 255558253 is 352855552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 228705129 + 26853124 = 15123^2 + 5182^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255558253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255588253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127779126 + 127779127.

It is an arithmetic number, because the mean of its divisors is an integer number (127779127).

Almost surely, 2^255558253 is an apocalyptic number.

It is an amenable number.

255558253 is a deficient number, since it is larger than the sum of its proper divisors (1).

255558253 is an equidigital number, since it uses as much as digits as its factorization.

255558253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 300000, while the sum is 40.

The square root of 255558253 is about 15986.1894458936. The cubic root of 255558253 is about 634.5949867347.

The spelling of 255558253 in words is "two hundred fifty-five million, five hundred fifty-eight thousand, two hundred fifty-three".