858812252 has 12 divisors (see below), whose sum is σ = 1503148920. Its totient is φ = 429341136.

The previous prime is 858812233. The next prime is 858812257. The reversal of 858812252 is 252218858.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (858812257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25274 + ... + 48542.

It is an arithmetic number, because the mean of its divisors is an integer number (125262410).

Almost surely, 2^858812252 is an apocalyptic number.

It is an amenable number.

858812252 is a deficient number, since it is larger than the sum of its proper divisors (644336668).

858812252 is a wasteful number, since it uses less digits than its factorization.

858812252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32500 (or 32498 counting only the distinct ones).

The product of its digits is 102400, while the sum is 41.

The square root of 858812252 is about 29305.4986649263. The cubic root of 858812252 is about 950.5305446498.

The spelling of 858812252 in words is "eight hundred fifty-eight million, eight hundred twelve thousand, two hundred fifty-two".