605666253 has 8 divisors (see below), whose sum is σ = 812223648. Its totient is φ = 401443184.

The previous prime is 605666233. The next prime is 605666261. The reversal of 605666253 is 352666506.

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 605666253 - 2⁵ = 605666221 is a prime.

It is a super-2 number, since 2×605666253² = 733663220046120018, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (605666203) 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, 582975 + ... + 584012.

It is an arithmetic number, because the mean of its divisors is an integer number (101527956).

Almost surely, 2^605666253 is an apocalyptic number.

It is an amenable number.

605666253 is a deficient number, since it is larger than the sum of its proper divisors (206557395).

605666253 is a wasteful number, since it uses less digits than its factorization.

605666253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167163.

The product of its (nonzero) digits is 194400, while the sum is 39.

The square root of 605666253 is about 24610.2875440333. The cubic root of 605666253 is about 846.0794081245.

The spelling of 605666253 in words is "six hundred five million, six hundred sixty-six thousand, two hundred fifty-three".