255957293 has 4 divisors (see below), whose sum is σ = 256239168. Its totient is φ = 255675420.

The previous prime is 255957269. The next prime is 255957313. The reversal of 255957293 is 392759552.

255957293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 255957293 - 2²² = 251762989 is a prime.

It is a super-5 number, since 5×255957293⁵ (a number of 43 digits) contains 55555 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 (255957223) 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, 139571 + ... + 141392.

It is an arithmetic number, because the mean of its divisors is an integer number (64059792).

Almost surely, 2^255957293 is an apocalyptic number.

It is an amenable number.

255957293 is a deficient number, since it is larger than the sum of its proper divisors (281875).

255957293 is an equidigital number, since it uses as much as digits as its factorization.

255957293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281874.

The product of its digits is 850500, while the sum is 47.

The square root of 255957293 is about 15998.6653505847. The cubic root of 255957293 is about 634.9251098983.

The spelling of 255957293 in words is "two hundred fifty-five million, nine hundred fifty-seven thousand, two hundred ninety-three".