7491225 has 48 divisors (see below), whose sum is σ = 14919680. Its totient is φ = 3240000.

The previous prime is 7491223. The next prime is 7491229. The reversal of 7491225 is 5221947.

It is not a de Polignac number, because 7491225 - 2¹ = 7491223 is a prime.

It is a super-2 number, since 2×7491225² = 112236904001250, which contains 22 as substring.

It is a zygodrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 7491192 and 7491201.

It is not an unprimeable number, because it can be changed into a prime (7491221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9600 + ... + 10350.

Almost surely, 2^7491225 is an apocalyptic number.

7491225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

7491225 is a deficient number, since it is larger than the sum of its proper divisors (7428455).

7491225 is a wasteful number, since it uses less digits than its factorization.

7491225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790 (or 785 counting only the distinct ones).

The product of its digits is 5040, while the sum is 30.

The square root of 7491225 is about 2737.0102301599. The cubic root of 7491225 is about 195.6670123475.

The spelling of 7491225 in words is "seven million, four hundred ninety-one thousand, two hundred twenty-five".