7424225 has 6 divisors (see below), whose sum is σ = 9206070. Its totient is φ = 5939360.

The previous prime is 7424201. The next prime is 7424233. The reversal of 7424225 is 5224247.

It can be written as a sum of positive squares in 3 ways, for example, as 824464 + 6599761 = 908^2 + 2569^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7424225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7424194 and 7424203.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 148460 + ... + 148509.

It is an arithmetic number, because the mean of its divisors is an integer number (1534345).

Almost surely, 2^7424225 is an apocalyptic number.

It is an amenable number.

7424225 is a deficient number, since it is larger than the sum of its proper divisors (1781845).

7424225 is a wasteful number, since it uses less digits than its factorization.

7424225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296979 (or 296974 counting only the distinct ones).

The product of its digits is 4480, while the sum is 26.

The square root of 7424225 is about 2724.7431071571. The cubic root of 7424225 is about 195.0819291931.

The spelling of 7424225 in words is "seven million, four hundred twenty-four thousand, two hundred twenty-five".