84251225 has 24 divisors (see below), whose sum is σ = 111347040. Its totient is φ = 63054720.

The previous prime is 84251221. The next prime is 84251239. The reversal of 84251225 is 52215248.

It is not a de Polignac number, because 84251225 - 2² = 84251221 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84251221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38357 + ... + 40493.

It is an arithmetic number, because the mean of its divisors is an integer number (4639460).

Almost surely, 2^84251225 is an apocalyptic number.

It is an amenable number.

84251225 is a deficient number, since it is larger than the sum of its proper divisors (27095815).

84251225 is a wasteful number, since it uses less digits than its factorization.

84251225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249 (or 2244 counting only the distinct ones).

The product of its digits is 6400, while the sum is 29.

The square root of 84251225 is about 9178.8466051024. The cubic root of 84251225 is about 438.3880844863.

The spelling of 84251225 in words is "eighty-four million, two hundred fifty-one thousand, two hundred twenty-five".