255793121 has 8 divisors (see below), whose sum is σ = 265433088. Its totient is φ = 246240000.

The previous prime is 255793117. The next prime is 255793123. The reversal of 255793121 is 121397552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 255793121 - 2² = 255793117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (255793123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15680 + ... + 27521.

It is an arithmetic number, because the mean of its divisors is an integer number (33179136).

Almost surely, 2^255793121 is an apocalyptic number.

It is an amenable number.

255793121 is a deficient number, since it is larger than the sum of its proper divisors (9639967).

255793121 is a wasteful number, since it uses less digits than its factorization.

255793121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43423.

The product of its digits is 18900, while the sum is 35.

The square root of 255793121 is about 15993.5337246026. The cubic root of 255793121 is about 634.7893330559.

The spelling of 255793121 in words is "two hundred fifty-five million, seven hundred ninety-three thousand, one hundred twenty-one".