7477225 has 12 divisors (see below), whose sum is σ = 10596544. Its totient is φ = 5127120.

The previous prime is 7477193. The next prime is 7477243. The reversal of 7477225 is 5227747.

It is not a de Polignac number, because 7477225 - 2⁵ = 7477193 is a prime.

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

7477225 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21189 + ... + 21538.

Almost surely, 2^7477225 is an apocalyptic number.

It is an amenable number.

7477225 is a deficient number, since it is larger than the sum of its proper divisors (3119319).

7477225 is a wasteful number, since it uses less digits than its factorization.

7477225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42744 (or 42739 counting only the distinct ones).

The product of its digits is 27440, while the sum is 34.

The square root of 7477225 is about 2734.4514989299. The cubic root of 7477225 is about 195.5450453608.

The spelling of 7477225 in words is "seven million, four hundred seventy-seven thousand, two hundred twenty-five".