255356623 has 2 divisors, whose sum is σ = 255356624. Its totient is φ = 255356622.

The previous prime is 255356587. The next prime is 255356663. The reversal of 255356623 is 326653552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255356623 - 2²¹ = 253259471 is a prime.

It is equal to p_13956175 and since 255356623 and 13956175 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255356663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127678311 + 127678312.

It is an arithmetic number, because the mean of its divisors is an integer number (127678312).

Almost surely, 2^255356623 is an apocalyptic number.

255356623 is a deficient number, since it is larger than the sum of its proper divisors (1).

255356623 is an equidigital number, since it uses as much as digits as its factorization.

255356623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 37.

The square root of 255356623 is about 15979.8818205893. The cubic root of 255356623 is about 634.4280488628.

The spelling of 255356623 in words is "two hundred fifty-five million, three hundred fifty-six thousand, six hundred twenty-three".