75456225 has 48 divisors (see below), whose sum is σ = 149296000. Its totient is φ = 37143360.

The previous prime is 75456211. The next prime is 75456229. The reversal of 75456225 is 52265457.

75456225 is a `hidden beast` number, since 75 + 4 + 562 + 25 = 666.

It is not a de Polignac number, because 75456225 - 2⁵ = 75456193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75456225.

It is not an unprimeable number, because it can be changed into a prime (75456229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4476 + ... + 13074.

Almost surely, 2^75456225 is an apocalyptic number.

75456225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75456225 is a deficient number, since it is larger than the sum of its proper divisors (73839775).

75456225 is a wasteful number, since it uses less digits than its factorization.

75456225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8631 (or 8620 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 75456225 is about 8686.5542650697. The cubic root of 75456225 is about 422.5697047791.

The spelling of 75456225 in words is "seventy-five million, four hundred fifty-six thousand, two hundred twenty-five".