255515233 has 4 divisors (see below), whose sum is σ = 255684528. Its totient is φ = 255345940.

The previous prime is 255515231. The next prime is 255515263. The reversal of 255515233 is 332515552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 255515233 - 2¹ = 255515231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 255515195 and 255515204.

It is not an unprimeable number, because it can be changed into a prime (255515231) 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, 82363 + ... + 85408.

It is an arithmetic number, because the mean of its divisors is an integer number (63921132).

Almost surely, 2^255515233 is an apocalyptic number.

It is an amenable number.

255515233 is a deficient number, since it is larger than the sum of its proper divisors (169295).

255515233 is a wasteful number, since it uses less digits than its factorization.

255515233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169294.

The product of its digits is 22500, while the sum is 31.

The square root of 255515233 is about 15984.8438528501. The cubic root of 255515233 is about 634.5593760562.

The spelling of 255515233 in words is "two hundred fifty-five million, five hundred fifteen thousand, two hundred thirty-three".