816525955 has 24 divisors (see below), whose sum is σ = 1145836800. Its totient is φ = 556940160.

The previous prime is 816525949. The next prime is 816525973. The reversal of 816525955 is 559525618.

816525955 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 816525955 - 2⁵ = 816525923 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38071 + ... + 55519.

It is an arithmetic number, because the mean of its divisors is an integer number (47743200).

Almost surely, 2^816525955 is an apocalyptic number.

816525955 is a deficient number, since it is larger than the sum of its proper divisors (329310845).

816525955 is a wasteful number, since it uses less digits than its factorization.

816525955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17659 (or 17652 counting only the distinct ones).

The product of its digits is 540000, while the sum is 46.

The square root of 816525955 is about 28574.9182850975. The cubic root of 816525955 is about 934.6664733560. Note that the first 3 decimals are identical.

The spelling of 816525955 in words is "eight hundred sixteen million, five hundred twenty-five thousand, nine hundred fifty-five".