75990825 has 48 divisors (see below), whose sum is σ = 141082240. Its totient is φ = 40098240.

The previous prime is 75990809. The next prime is 75990829. The reversal of 75990825 is 52809957.

It is a happy number.

It is not a de Polignac number, because 75990825 - 2⁴ = 75990809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (75990829) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 68979 + ... + 70071.

Almost surely, 2^75990825 is an apocalyptic number.

75990825 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

75990825 is a deficient number, since it is larger than the sum of its proper divisors (65091415).

75990825 is a wasteful number, since it uses less digits than its factorization.

75990825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 45.

The square root of 75990825 is about 8717.2716488589. The cubic root of 75990825 is about 423.5653122652.

The spelling of 75990825 in words is "seventy-five million, nine hundred ninety thousand, eight hundred twenty-five".