853756253 has 12 divisors (see below), whose sum is σ = 993665952. Its totient is φ = 731407320.

The previous prime is 853756249. The next prime is 853756261. The reversal of 853756253 is 352657358.

It is not a de Polignac number, because 853756253 - 2² = 853756249 is a prime.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853756273) 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, 129626 + ... + 136052.

It is an arithmetic number, because the mean of its divisors is an integer number (82805496).

Almost surely, 2^853756253 is an apocalyptic number.

It is an amenable number.

853756253 is a deficient number, since it is larger than the sum of its proper divisors (139909699).

853756253 is a wasteful number, since it uses less digits than its factorization.

853756253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9152 (or 9145 counting only the distinct ones).

The product of its digits is 756000, while the sum is 44.

The square root of 853756253 is about 29219.1076694686. The cubic root of 853756253 is about 948.6615511648.

The spelling of 853756253 in words is "eight hundred fifty-three million, seven hundred fifty-six thousand, two hundred fifty-three".