8431225 has 48 divisors (see below), whose sum is σ = 12570624. Its totient is φ = 5544000.

The previous prime is 8431211. The next prime is 8431243. The reversal of 8431225 is 5221348.

It is not a de Polignac number, because 8431225 - 2⁷ = 8431097 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8431225.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 196054 + ... + 196096.

It is an arithmetic number, because the mean of its divisors is an integer number (261888).

Almost surely, 2^8431225 is an apocalyptic number.

It is an amenable number.

8431225 is a deficient number, since it is larger than the sum of its proper divisors (4139399).

8431225 is a wasteful number, since it uses less digits than its factorization.

8431225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118 (or 113 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 8431225 is about 2903.6571767342. The cubic root of 8431225 is about 203.5308406675.

The spelling of 8431225 in words is "eight million, four hundred thirty-one thousand, two hundred twenty-five".