255031093 has 4 divisors (see below), whose sum is σ = 270032940. Its totient is φ = 240029248.

The previous prime is 255031081. The next prime is 255031157. The reversal of 255031093 is 390130552.

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

It can be written as a sum of positive squares in 2 ways, for example, as 217356049 + 37675044 = 14743^2 + 6138^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-255031093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255031493) 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, 7500898 + ... + 7500931.

It is an arithmetic number, because the mean of its divisors is an integer number (67508235).

Almost surely, 2^255031093 is an apocalyptic number.

It is an amenable number.

255031093 is a deficient number, since it is larger than the sum of its proper divisors (15001847).

255031093 is a wasteful number, since it uses less digits than its factorization.

255031093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15001846.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 255031093 is about 15969.6929525899. The cubic root of 255031093 is about 634.1583434570.

The spelling of 255031093 in words is "two hundred fifty-five million, thirty-one thousand, ninety-three".