85747825 has 12 divisors (see below), whose sum is σ = 106478428. Its totient is φ = 68500800.

The previous prime is 85747819. The next prime is 85747853. The reversal of 85747825 is 52874758.

It can be written as a sum of positive squares in 6 ways, for example, as 34152336 + 51595489 = 5844^2 + 7183^2 .

It is not a de Polignac number, because 85747825 - 2¹⁵ = 85715057 is a prime.

It is a Duffinian number.

It is a congruent 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, 19315 + ... + 23335.

Almost surely, 2^85747825 is an apocalyptic number.

It is an amenable number.

85747825 is a deficient number, since it is larger than the sum of its proper divisors (20730603).

85747825 is a wasteful number, since it uses less digits than its factorization.

85747825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4884 (or 4879 counting only the distinct ones).

The product of its digits is 627200, while the sum is 46.

The square root of 85747825 is about 9260.0121490201. The cubic root of 85747825 is about 440.9686390939.

The spelling of 85747825 in words is "eighty-five million, seven hundred forty-seven thousand, eight hundred twenty-five".