816474025 has 6 divisors (see below), whose sum is σ = 1012427822. Its totient is φ = 653179200.

The previous prime is 816474017. The next prime is 816474031. The reversal of 816474025 is 520474618.

816474025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 62916624 + 753557401 = 7932^2 + 27451^2 .

It is not a de Polignac number, because 816474025 - 2³ = 816474017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16329456 + ... + 16329505.

Almost surely, 2^816474025 is an apocalyptic number.

It is an amenable number.

816474025 is a deficient number, since it is larger than the sum of its proper divisors (195953797).

816474025 is a wasteful number, since it uses less digits than its factorization.

816474025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32658971 (or 32658966 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 816474025 is about 28574.0096066338. The cubic root of 816474025 is about 934.6466584076.

The spelling of 816474025 in words is "eight hundred sixteen million, four hundred seventy-four thousand, twenty-five".