255113455 has 4 divisors (see below), whose sum is σ = 306136152. Its totient is φ = 204090760.

The previous prime is 255113431. The next prime is 255113473. The reversal of 255113455 is 554311552.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 255113455 - 2²³ = 246724847 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25511341 + ... + 25511350.

It is an arithmetic number, because the mean of its divisors is an integer number (76534038).

Almost surely, 2^255113455 is an apocalyptic number.

255113455 is a deficient number, since it is larger than the sum of its proper divisors (51022697).

255113455 is an equidigital number, since it uses as much as digits as its factorization.

255113455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51022696.

The product of its digits is 15000, while the sum is 31.

The square root of 255113455 is about 15972.2714414701. The cubic root of 255113455 is about 634.2266030135.

The spelling of 255113455 in words is "two hundred fifty-five million, one hundred thirteen thousand, four hundred fifty-five".