255222513 has 96 divisors (see below), whose sum is σ = 501935616. Its totient is φ = 121042944.

The previous prime is 255222509. The next prime is 255222521. The reversal of 255222513 is 315222552.

It is not a de Polignac number, because 255222513 - 2² = 255222509 is a prime.

It is a super-2 number, since 2×255222513² = 130277062284070338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (255222523) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 319831 + ... + 320627.

It is an arithmetic number, because the mean of its divisors is an integer number (5228496).

Almost surely, 2^255222513 is an apocalyptic number.

255222513 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

255222513 is a deficient number, since it is larger than the sum of its proper divisors (246713103).

255222513 is a wasteful number, since it uses less digits than its factorization.

255222513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863 (or 860 counting only the distinct ones).

The product of its digits is 6000, while the sum is 27.

The square root of 255222513 is about 15975.6850557339. The cubic root of 255222513 is about 634.3169649417.

The spelling of 255222513 in words is "two hundred fifty-five million, two hundred twenty-two thousand, five hundred thirteen".