255116623 has 2 divisors, whose sum is σ = 255116624. Its totient is φ = 255116622.

The previous prime is 255116581. The next prime is 255116627. The reversal of 255116623 is 326611552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255116623 - 2¹³ = 255108431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255116627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127558311 + 127558312.

It is an arithmetic number, because the mean of its divisors is an integer number (127558312).

Almost surely, 2^255116623 is an apocalyptic number.

255116623 is a deficient number, since it is larger than the sum of its proper divisors (1).

255116623 is an equidigital number, since it uses as much as digits as its factorization.

255116623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10800, while the sum is 31.

The square root of 255116623 is about 15972.3706130305. The cubic root of 255116623 is about 634.2292282789.

The spelling of 255116623 in words is "two hundred fifty-five million, one hundred sixteen thousand, six hundred twenty-three".