255513023 has 4 divisors (see below), whose sum is σ = 255904968. Its totient is φ = 255121080.

The previous prime is 255513017. The next prime is 255513031. The reversal of 255513023 is 320315552.

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 255513023 - 2⁸ = 255512767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255512983 and 255513001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (254513023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194993 + ... + 196298.

It is an arithmetic number, because the mean of its divisors is an integer number (63976242).

Almost surely, 2^255513023 is an apocalyptic number.

255513023 is a deficient number, since it is larger than the sum of its proper divisors (391945).

255513023 is an equidigital number, since it uses as much as digits as its factorization.

255513023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391944.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 255513023 is about 15984.7747247185. The cubic root of 255513023 is about 634.5575465759.

Adding to 255513023 its reverse (320315552), we get a palindrome (575828575).

The spelling of 255513023 in words is "two hundred fifty-five million, five hundred thirteen thousand, twenty-three".