255723213 has 16 divisors (see below), whose sum is σ = 345246336. Its totient is φ = 168350400.

The previous prime is 255723211. The next prime is 255723217. The reversal of 255723213 is 312327552.

It is a happy number.

It is not a de Polignac number, because 255723213 - 2¹ = 255723211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255723211) 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, 146695 + ... + 148427.

It is an arithmetic number, because the mean of its divisors is an integer number (21577896).

Almost surely, 2^255723213 is an apocalyptic number.

It is an amenable number.

255723213 is a deficient number, since it is larger than the sum of its proper divisors (89523123).

255723213 is a wasteful number, since it uses less digits than its factorization.

255723213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2324.

The product of its digits is 12600, while the sum is 30.

The square root of 255723213 is about 15991.3480670017. The cubic root of 255723213 is about 634.7314986937.

The spelling of 255723213 in words is "two hundred fifty-five million, seven hundred twenty-three thousand, two hundred thirteen".