255889555423 has 2 divisors, whose sum is σ = 255889555424. Its totient is φ = 255889555422.

The previous prime is 255889555409. The next prime is 255889555451. The reversal of 255889555423 is 324555988552.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 255889555423 - 2⁵ = 255889555391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (255889555223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127944777711 + 127944777712.

It is an arithmetic number, because the mean of its divisors is an integer number (127944777712).

Almost surely, 2^255889555423 is an apocalyptic number.

255889555423 is a deficient number, since it is larger than the sum of its proper divisors (1).

255889555423 is an equidigital number, since it uses as much as digits as its factorization.

255889555423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400000, while the sum is 61.

The spelling of 255889555423 in words is "two hundred fifty-five billion, eight hundred eighty-nine million, five hundred fifty-five thousand, four hundred twenty-three".