766550853 has 12 divisors (see below), whose sum is σ = 1113428160. Its totient is φ = 508177896.

The previous prime is 766550849. The next prime is 766550879. The reversal of 766550853 is 358055667.

It is not a de Polignac number, because 766550853 - 2² = 766550849 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 766550799 and 766550808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (766550353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236301 + ... + 239522.

It is an arithmetic number, because the mean of its divisors is an integer number (92785680).

Almost surely, 2^766550853 is an apocalyptic number.

It is an amenable number.

766550853 is a deficient number, since it is larger than the sum of its proper divisors (346877307).

766550853 is a wasteful number, since it uses less digits than its factorization.

766550853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 476008 (or 476005 counting only the distinct ones).

The product of its (nonzero) digits is 756000, while the sum is 45.

The square root of 766550853 is about 27686.6547816814. The cubic root of 766550853 is about 915.1950385988.

The spelling of 766550853 in words is "seven hundred sixty-six million, five hundred fifty thousand, eight hundred fifty-three".