80864225 has 12 divisors (see below), whose sum is σ = 107985276. Its totient is φ = 59714880.

The previous prime is 80864219. The next prime is 80864249. The reversal of 80864225 is 52246808.

It can be written as a sum of positive squares in 6 ways, for example, as 25391521 + 55472704 = 5039^2 + 7448^2 .

It is not a de Polignac number, because 80864225 - 2¹⁰ = 80863201 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 124082 + ... + 124731.

It is an arithmetic number, because the mean of its divisors is an integer number (8998773).

Almost surely, 2^80864225 is an apocalyptic number.

It is an amenable number.

80864225 is a deficient number, since it is larger than the sum of its proper divisors (27121051).

80864225 is a wasteful number, since it uses less digits than its factorization.

80864225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248836 (or 248831 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

The square root of 80864225 is about 8992.4537808098. The cubic root of 80864225 is about 432.4329810285.

The spelling of 80864225 in words is "eighty million, eight hundred sixty-four thousand, two hundred twenty-five".