255145530 has 32 divisors (see below), whose sum is σ = 616117824. Its totient is φ = 67620096.

The previous prime is 255145519. The next prime is 255145549. The reversal of 255145530 is 35541552.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 21199 + ... + 30978.

It is an arithmetic number, because the mean of its divisors is an integer number (19253682).

Almost surely, 2^255145530 is an apocalyptic number.

255145530 is an abundant number, since it is smaller than the sum of its proper divisors (360972294).

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

255145530 is a wasteful number, since it uses less digits than its factorization.

255145530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52350.

The product of its (nonzero) digits is 15000, while the sum is 30.

The square root of 255145530 is about 15973.2754937740. The cubic root of 255145530 is about 634.2531819929.

The spelling of 255145530 in words is "two hundred fifty-five million, one hundred forty-five thousand, five hundred thirty".