853812252 has 60 divisors (see below), whose sum is σ = 2235002616. Its totient is φ = 284225760.

The previous prime is 853812251. The next prime is 853812299. The reversal of 853812252 is 252218358.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853812251) 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, 352927 + ... + 355337.

Almost surely, 2^853812252 is an apocalyptic number.

It is an amenable number.

853812252 is an abundant number, since it is smaller than the sum of its proper divisors (1381190364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

853812252 is a wasteful number, since it uses less digits than its factorization.

853812252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3520 (or 3509 counting only the distinct ones).

The product of its digits is 38400, while the sum is 36.

The square root of 853812252 is about 29220.0659136834. The cubic root of 853812252 is about 948.6822920326.

The spelling of 853812252 in words is "eight hundred fifty-three million, eight hundred twelve thousand, two hundred fifty-two".