7445625 has 60 divisors (see below), whose sum is σ = 14282928. Its totient is φ = 3420000.

The previous prime is 7445597. The next prime is 7445639. The reversal of 7445625 is 5265447.

It is not a de Polignac number, because 7445625 - 2⁵ = 7445593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 59 ways as a sum of consecutive naturals, for example, 391866 + ... + 391884.

Almost surely, 2^7445625 is an apocalyptic number.

7445625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7445625 is a deficient number, since it is larger than the sum of its proper divisors (6837303).

7445625 is a wasteful number, since it uses less digits than its factorization.

7445625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 38 counting only the distinct ones).

The product of its digits is 33600, while the sum is 33.

The square root of 7445625 is about 2728.6672571056. The cubic root of 7445625 is about 195.2691877292.

Multiplying 7445625 by its sum of digits (33), we get a square (245705625 = 15675²).

7445625 divided by its sum of digits (33) gives a square (225625 = 475²).

The spelling of 7445625 in words is "seven million, four hundred forty-five thousand, six hundred twenty-five".