75481825 has 6 divisors (see below), whose sum is σ = 93597494. Its totient is φ = 60385440.

The previous prime is 75481823. The next prime is 75481841. The reversal of 75481825 is 52818457.

It can be written as a sum of positive squares in 3 ways, for example, as 208849 + 75272976 = 457^2 + 8676^2 .

It is not a de Polignac number, because 75481825 - 2¹ = 75481823 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75481823) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1509612 + ... + 1509661.

Almost surely, 2^75481825 is an apocalyptic number.

It is an amenable number.

75481825 is a deficient number, since it is larger than the sum of its proper divisors (18115669).

75481825 is a wasteful number, since it uses less digits than its factorization.

75481825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3019283 (or 3019278 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 75481825 is about 8688.0276818159. The cubic root of 75481825 is about 422.6174877212.

The spelling of 75481825 in words is "seventy-five million, four hundred eighty-one thousand, eight hundred twenty-five".