800161625 has 8 divisors (see below), whose sum is σ = 998601864. Its totient is φ = 640129200.

The previous prime is 800161613. The next prime is 800161631. The reversal of 800161625 is 526161008.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 72726784 + 727434841 = 8528^2 + 26971^2 .

It is not a de Polignac number, because 800161625 - 2⁶ = 800161561 is a prime.

It is a super-2 number, since 2×800161625² = 1280517252245281250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3200522 + ... + 3200771.

It is an arithmetic number, because the mean of its divisors is an integer number (124825233).

Almost surely, 2^800161625 is an apocalyptic number.

It is an amenable number.

800161625 is a deficient number, since it is larger than the sum of its proper divisors (198440239).

800161625 is an equidigital number, since it uses as much as digits as its factorization.

800161625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6401308 (or 6401298 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 800161625 is about 28287.1282565056. The cubic root of 800161625 is about 928.3802789125.

The spelling of 800161625 in words is "eight hundred million, one hundred sixty-one thousand, six hundred twenty-five".