255197530 has 32 divisors (see below), whose sum is σ = 537788160. Its totient is φ = 85361280.

The previous prime is 255197513. The next prime is 255197533. The reversal of 255197530 is 35791552.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 255197530.

It is not an unprimeable number, because it can be changed into a prime (255197533) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 41590 + ... + 47329.

It is an arithmetic number, because the mean of its divisors is an integer number (16805880).

Almost surely, 2^255197530 is an apocalyptic number.

255197530 is an abundant number, since it is smaller than the sum of its proper divisors (282590630).

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

255197530 is a wasteful number, since it uses less digits than its factorization.

255197530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88974.

The product of its (nonzero) digits is 47250, while the sum is 37.

The square root of 255197530 is about 15974.9031295967. The cubic root of 255197530 is about 634.2962671101.

The spelling of 255197530 in words is "two hundred fifty-five million, one hundred ninety-seven thousand, five hundred thirty".