7850225 has 12 divisors (see below), whose sum is σ = 9833820. Its totient is φ = 6216000.

The previous prime is 7850197. The next prime is 7850231. The reversal of 7850225 is 5220587.

It can be written as a sum of positive squares in 6 ways, for example, as 4624 + 7845601 = 68^2 + 2801^2 .

It is not a de Polignac number, because 7850225 - 2²² = 3655921 is a prime.

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, 971 + ... + 4079.

It is an arithmetic number, because the mean of its divisors is an integer number (819485).

Almost surely, 2^7850225 is an apocalyptic number.

It is an amenable number.

7850225 is a deficient number, since it is larger than the sum of its proper divisors (1983595).

7850225 is a wasteful number, since it uses less digits than its factorization.

7850225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220 (or 3215 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 7850225 is about 2801.8252979085. The cubic root of 7850225 is about 198.7440038801.

The spelling of 7850225 in words is "seven million, eight hundred fifty thousand, two hundred twenty-five".