255121610 has 8 divisors (see below), whose sum is σ = 459218916. Its totient is φ = 102048640.

The previous prime is 255121609. The next prime is 255121619. The reversal of 255121610 is 16121552.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 237067609 + 18054001 = 15397^2 + 4249^2 .

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

It is not an unprimeable number, because it can be changed into a prime (255121619) 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, 12756071 + ... + 12756090.

Almost surely, 2^255121610 is an apocalyptic number.

255121610 is a deficient number, since it is larger than the sum of its proper divisors (204097306).

255121610 is a wasteful number, since it uses less digits than its factorization.

255121610 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25512168.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 255121610 is about 15972.5267255998. The cubic root of 255121610 is about 634.2333608733.

The spelling of 255121610 in words is "two hundred fifty-five million, one hundred twenty-one thousand, six hundred ten".