255423402263 has 4 divisors (see below), whose sum is σ = 255425088528. Its totient is φ = 255421716000.

The previous prime is 255423402193. The next prime is 255423402301. The reversal of 255423402263 is 362204324552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 255423402263 - 2²⁶ = 255356293399 is a prime.

It is a super-2 number, since 2×255423402263² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255423401263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 590738 + ... + 927263.

It is an arithmetic number, because the mean of its divisors is an integer number (63856272132).

Almost surely, 2^255423402263 is an apocalyptic number.

255423402263 is a deficient number, since it is larger than the sum of its proper divisors (1686265).

255423402263 is a wasteful number, since it uses less digits than its factorization.

255423402263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686264.

The product of its (nonzero) digits is 345600, while the sum is 38.

The spelling of 255423402263 in words is "two hundred fifty-five billion, four hundred twenty-three million, four hundred two thousand, two hundred sixty-three".