255128970 has 16 divisors (see below), whose sum is σ = 612309600. Its totient is φ = 68034384.

The previous prime is 255128963. The next prime is 255128971. The reversal of 255128970 is 79821552.

It is not an unprimeable number, because it can be changed into a prime (255128971) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4252120 + ... + 4252179.

It is an arithmetic number, because the mean of its divisors is an integer number (38269350).

Almost surely, 2^255128970 is an apocalyptic number.

255128970 is an abundant number, since it is smaller than the sum of its proper divisors (357180630).

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

255128970 is a wasteful number, since it uses less digits than its factorization.

255128970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8504309.

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 255128970 is about 15972.7571195458. The cubic root of 255128970 is about 634.2394598113.

The spelling of 255128970 in words is "two hundred fifty-five million, one hundred twenty-eight thousand, nine hundred seventy".