668250255 has 8 divisors (see below), whose sum is σ = 1069200432. Its totient is φ = 356400128.

The previous prime is 668250241. The next prime is 668250259. The reversal of 668250255 is 552052866.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 668250255 - 2⁵ = 668250223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668250259) 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, 22274994 + ... + 22275023.

It is an arithmetic number, because the mean of its divisors is an integer number (133650054).

Almost surely, 2^668250255 is an apocalyptic number.

668250255 is a deficient number, since it is larger than the sum of its proper divisors (400950177).

668250255 is a wasteful number, since it uses less digits than its factorization.

668250255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44550025.

The product of its (nonzero) digits is 144000, while the sum is 39.

The square root of 668250255 is about 25850.5368416209. The cubic root of 668250255 is about 874.2716136932.

The spelling of 668250255 in words is "six hundred sixty-eight million, two hundred fifty thousand, two hundred fifty-five".