255231512 has 8 divisors (see below), whose sum is σ = 478559100. Its totient is φ = 127615752.

The previous prime is 255231497. The next prime is 255231521. The reversal of 255231512 is 215132552.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×255231512² = 130286249435612288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15951962 + ... + 15951977.

Almost surely, 2^255231512 is an apocalyptic number.

It is an amenable number.

255231512 is a deficient number, since it is larger than the sum of its proper divisors (223327588).

255231512 is a wasteful number, since it uses less digits than its factorization.

255231512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31903945 (or 31903941 counting only the distinct ones).

The product of its digits is 3000, while the sum is 26.

The square root of 255231512 is about 15975.9667000154. The cubic root of 255231512 is about 634.3244200720.

The spelling of 255231512 in words is "two hundred fifty-five million, two hundred thirty-one thousand, five hundred twelve".