801165025 has 6 divisors (see below), whose sum is σ = 993444662. Its totient is φ = 640932000.

The previous prime is 801165019. The next prime is 801165041. The reversal of 801165025 is 520561108.

It can be written as a sum of positive squares in 3 ways, for example, as 88435216 + 712729809 = 9404^2 + 26697^2 .

It is not a de Polignac number, because 801165025 - 2⁵ = 801164993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 801164984 and 801165002.

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, 16023276 + ... + 16023325.

Almost surely, 2^801165025 is an apocalyptic number.

It is an amenable number.

801165025 is a deficient number, since it is larger than the sum of its proper divisors (192279637).

801165025 is a wasteful number, since it uses less digits than its factorization.

801165025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32046611 (or 32046606 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 28.

The square root of 801165025 is about 28304.8586818588. The cubic root of 801165025 is about 928.7681787370.

The spelling of 801165025 in words is "eight hundred one million, one hundred sixty-five thousand, twenty-five".