255320023 has 4 divisors (see below), whose sum is σ = 291794320. Its totient is φ = 218845728.

The previous prime is 255320003. The next prime is 255320029. The reversal of 255320023 is 320023552.

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 255320023 - 2²⁵ = 221765591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255319976 and 255320003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255320029) 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, 18237138 + ... + 18237151.

It is an arithmetic number, because the mean of its divisors is an integer number (72948580).

Almost surely, 2^255320023 is an apocalyptic number.

255320023 is a deficient number, since it is larger than the sum of its proper divisors (36474297).

255320023 is an equidigital number, since it uses as much as digits as its factorization.

255320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36474296.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 255320023 is about 15978.7365896056. The cubic root of 255320023 is about 634.3977367764.

Adding to 255320023 its reverse (320023552), we get a palindrome (575343575).

The spelling of 255320023 in words is "two hundred fifty-five million, three hundred twenty thousand, twenty-three".