255197830 has 8 divisors (see below), whose sum is σ = 459356112. Its totient is φ = 102079128.

The previous prime is 255197779. The next prime is 255197837. The reversal of 255197830 is 38791552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (255197837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12759882 + ... + 12759901.

It is an arithmetic number, because the mean of its divisors is an integer number (57419514).

Almost surely, 2^255197830 is an apocalyptic number.

255197830 is a deficient number, since it is larger than the sum of its proper divisors (204158282).

255197830 is a wasteful number, since it uses less digits than its factorization.

255197830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25519790.

The product of its (nonzero) digits is 75600, while the sum is 40.

The square root of 255197830 is about 15974.9125193223. The cubic root of 255197830 is about 634.2965156611.

The spelling of 255197830 in words is "two hundred fifty-five million, one hundred ninety-seven thousand, eight hundred thirty".