766601253 has 20 divisors (see below), whose sum is σ = 1249277568. Its totient is φ = 464606280.

The previous prime is 766601237. The next prime is 766601257. The reversal of 766601253 is 352106667.

It is not a de Polignac number, because 766601253 - 2⁴ = 766601237 is a prime.

It is a super-2 number, since 2×766601253² = 1175354962202340018, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766601257) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 429301 + ... + 431082.

Almost surely, 2^766601253 is an apocalyptic number.

It is an amenable number.

766601253 is a deficient number, since it is larger than the sum of its proper divisors (482676315).

766601253 is a wasteful number, since it uses less digits than its factorization.

766601253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860406 (or 860397 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 766601253 is about 27687.5649525198. The cubic root of 766601253 is about 915.2150958978.

The spelling of 766601253 in words is "seven hundred sixty-six million, six hundred one thousand, two hundred fifty-three".