75330025 has 12 divisors (see below), whose sum is σ = 93520924. Its totient is φ = 60192000.

The previous prime is 75330019. The next prime is 75330071. The reversal of 75330025 is 52003357.

It can be written as a sum of positive squares in 6 ways, for example, as 2005056 + 73324969 = 1416^2 + 8563^2 .

It is not a de Polignac number, because 75330025 - 2⁵ = 75329993 is a prime.

It is a super-2 number, since 2×75330025² = 11349225333001250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31885 + ... + 34165.

Almost surely, 2^75330025 is an apocalyptic number.

It is an amenable number.

75330025 is a deficient number, since it is larger than the sum of its proper divisors (18190899).

75330025 is a wasteful number, since it uses less digits than its factorization.

75330025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3612 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 75330025 is about 8679.2871251042. The cubic root of 75330025 is about 422.3339917115. Note that the first 3 decimals are identical.

The spelling of 75330025 in words is "seventy-five million, three hundred thirty thousand, twenty-five".