255452254639 has 2 divisors, whose sum is σ = 255452254640. Its totient is φ = 255452254638.

The previous prime is 255452254507. The next prime is 255452254663. The reversal of 255452254639 is 936452254552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 255452254639 - 2³¹ = 253304770991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255452254699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127726127319 + 127726127320.

It is an arithmetic number, because the mean of its divisors is an integer number (127726127320).

Almost surely, 2^255452254639 is an apocalyptic number.

255452254639 is a deficient number, since it is larger than the sum of its proper divisors (1).

255452254639 is an equidigital number, since it uses as much as digits as its factorization.

255452254639 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12960000, while the sum is 52.

The spelling of 255452254639 in words is "two hundred fifty-five billion, four hundred fifty-two million, two hundred fifty-four thousand, six hundred thirty-nine".