72075225 has 12 divisors (see below), whose sum is σ = 119164496. Its totient is φ = 38440080.

The previous prime is 72075209. The next prime is 72075229. The reversal of 72075225 is 52257027.

It is not a de Polignac number, because 72075225 - 2⁴ = 72075209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72075192 and 72075201.

It is not an unprimeable number, because it can be changed into a prime (72075229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 480427 + ... + 480576.

Almost surely, 2^72075225 is an apocalyptic number.

72075225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72075225 is a deficient number, since it is larger than the sum of its proper divisors (47089271).

72075225 is a wasteful number, since it uses less digits than its factorization.

72075225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961016 (or 961011 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 72075225 is about 8489.7128926719. The cubic root of 72075225 is about 416.1615977982.

The spelling of 72075225 in words is "seventy-two million, seventy-five thousand, two hundred twenty-five".