7458225 has 24 divisors (see below), whose sum is σ = 12409920. Its totient is φ = 3952320.

The previous prime is 7458211. The next prime is 7458229. The reversal of 7458225 is 5228547.

It is not a de Polignac number, because 7458225 - 2⁵ = 7458193 is a prime.

It is a d-powerful number, because it can be written as 7 + 4⁹ + 5 + 8² + 2²⁰ + 2²² + 5⁹ .

7458225 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (7458229) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 20596 + ... + 20954.

It is an arithmetic number, because the mean of its divisors is an integer number (517080).

Almost surely, 2^7458225 is an apocalyptic number.

7458225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7458225 is a deficient number, since it is larger than the sum of its proper divisors (4951695).

7458225 is a wasteful number, since it uses less digits than its factorization.

7458225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649 (or 644 counting only the distinct ones).

The product of its digits is 22400, while the sum is 33.

The square root of 7458225 is about 2730.9751005822. The cubic root of 7458225 is about 195.3792749812.

The spelling of 7458225 in words is "seven million, four hundred fifty-eight thousand, two hundred twenty-five".