75645625 has 20 divisors (see below), whose sum is σ = 103129488. Its totient is φ = 55010000.

The previous prime is 75645623. The next prime is 75645629. The reversal of 75645625 is 52654657.

It is not a de Polignac number, because 75645625 - 2¹ = 75645623 is a prime.

It is a super-3 number, since 3×75645625³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (75645623) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1374 + ... + 12376.

Almost surely, 2^75645625 is an apocalyptic number.

It is an amenable number.

75645625 is a deficient number, since it is larger than the sum of its proper divisors (27483863).

75645625 is a wasteful number, since it uses less digits than its factorization.

75645625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11034 (or 11019 counting only the distinct ones).

The product of its digits is 252000, while the sum is 40.

The square root of 75645625 is about 8697.4493387429. The cubic root of 75645625 is about 422.9229684594.

The spelling of 75645625 in words is "seventy-five million, six hundred forty-five thousand, six hundred twenty-five".