80172250 has 64 divisors (see below), whose sum is σ = 159584256. Its totient is φ = 30096000.

The previous prime is 80172223. The next prime is 80172299. The reversal of 80172250 is 5227108.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 419655 + ... + 419845.

It is an arithmetic number, because the mean of its divisors is an integer number (2493504).

Almost surely, 2^80172250 is an apocalyptic number.

80172250 is a deficient number, since it is larger than the sum of its proper divisors (79412006).

80172250 is a wasteful number, since it uses less digits than its factorization.

80172250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 80172250 is about 8953.8958001531. The cubic root of 80172250 is about 431.1959674655.

Adding to 80172250 its reverse (5227108), we get a palindrome (85399358).

The spelling of 80172250 in words is "eighty million, one hundred seventy-two thousand, two hundred fifty".