255029128 has 8 divisors (see below), whose sum is σ = 478179630. Its totient is φ = 127514560.

The previous prime is 255029119. The next prime is 255029147. The reversal of 255029128 is 821920552.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 245799684 + 9229444 = 15678^2 + 3038^2 .

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

It is a super-2 number, since 2×255029128² = 130079712256880768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 255029093 and 255029102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15939313 + ... + 15939328.

Almost surely, 2^255029128 is an apocalyptic number.

It is an amenable number.

255029128 is a deficient number, since it is larger than the sum of its proper divisors (223150502).

255029128 is a wasteful number, since it uses less digits than its factorization.

255029128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31878647 (or 31878643 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 255029128 is about 15969.6314296855. The cubic root of 255029128 is about 634.1567147349.

The spelling of 255029128 in words is "two hundred fifty-five million, twenty-nine thousand, one hundred twenty-eight".