816255852 has 48 divisors (see below), whose sum is σ = 1919998080. Its totient is φ = 269895808.

The previous prime is 816255829. The next prime is 816255859. The reversal of 816255852 is 258552618.

It is not an unprimeable number, because it can be changed into a prime (816255859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1238299 + ... + 1238957.

It is an arithmetic number, because the mean of its divisors is an integer number (39999960).

Almost surely, 2^816255852 is an apocalyptic number.

It is an amenable number.

816255852 is an abundant number, since it is smaller than the sum of its proper divisors (1103742228).

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

816255852 is a wasteful number, since it uses less digits than its factorization.

816255852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1342 (or 1340 counting only the distinct ones).

The product of its digits is 192000, while the sum is 42.

The square root of 816255852 is about 28570.1916689405. The cubic root of 816255852 is about 934.5634008779.

The spelling of 816255852 in words is "eight hundred sixteen million, two hundred fifty-five thousand, eight hundred fifty-two".