255904123 has 4 divisors (see below), whose sum is σ = 256000960. Its totient is φ = 255807288.

The previous prime is 255904109. The next prime is 255904127. The reversal of 255904123 is 321409552.

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 255904123 - 2¹⁷ = 255773051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255904127) 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, 44340 + ... + 49777.

It is an arithmetic number, because the mean of its divisors is an integer number (64000240).

Almost surely, 2^255904123 is an apocalyptic number.

255904123 is a deficient number, since it is larger than the sum of its proper divisors (96837).

255904123 is an equidigital number, since it uses as much as digits as its factorization.

255904123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96836.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 255904123 is about 15997.0035631677. The cubic root of 255904123 is about 634.8811425297.

The spelling of 255904123 in words is "two hundred fifty-five million, nine hundred four thousand, one hundred twenty-three".