255534393 has 16 divisors (see below), whose sum is σ = 356530176. Its totient is φ = 162489360.

The previous prime is 255534379. The next prime is 255534421. The reversal of 255534393 is 393435552.

It is a happy number.

It is not a de Polignac number, because 255534393 - 2⁸ = 255534137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (255534313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20278 + ... + 30368.

It is an arithmetic number, because the mean of its divisors is an integer number (22283136).

Almost surely, 2^255534393 is an apocalyptic number.

255534393 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

255534393 is a deficient number, since it is larger than the sum of its proper divisors (100995783).

255534393 is a wasteful number, since it uses less digits than its factorization.

255534393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10484.

The product of its digits is 243000, while the sum is 39.

The square root of 255534393 is about 15985.4431593247. The cubic root of 255534393 is about 634.5752366289.

The spelling of 255534393 in words is "two hundred fifty-five million, five hundred thirty-four thousand, three hundred ninety-three".