255429966 has 32 divisors (see below), whose sum is σ = 559397376. Its totient is φ = 77112000.

The previous prime is 255429953. The next prime is 255429971. The reversal of 255429966 is 669924552.

255429966 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×255429966² = 130488935061522312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10746 + ... + 25026.

It is an arithmetic number, because the mean of its divisors is an integer number (17481168).

Almost surely, 2^255429966 is an apocalyptic number.

255429966 is an abundant number, since it is smaller than the sum of its proper divisors (303967410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

255429966 is a wasteful number, since it uses less digits than its factorization.

255429966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14568.

The product of its digits is 1166400, while the sum is 48.

The square root of 255429966 is about 15982.1765101002. The cubic root of 255429966 is about 634.4887827516.

The spelling of 255429966 in words is "two hundred fifty-five million, four hundred twenty-nine thousand, nine hundred sixty-six".