83725825 has 6 divisors (see below), whose sum is σ = 103820054. Its totient is φ = 66980640.

The previous prime is 83725801. The next prime is 83725853. The reversal of 83725825 is 52852738.

It can be written as a sum of positive squares in 3 ways, for example, as 8105409 + 75620416 = 2847^2 + 8696^2 .

It is not a de Polignac number, because 83725825 - 2⁵ = 83725793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1674492 + ... + 1674541.

Almost surely, 2^83725825 is an apocalyptic number.

It is an amenable number.

83725825 is a deficient number, since it is larger than the sum of its proper divisors (20094229).

83725825 is a wasteful number, since it uses less digits than its factorization.

83725825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349043 (or 3349038 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 83725825 is about 9150.1816921851. The cubic root of 83725825 is about 437.4749046830.

It can be divided in two parts, 837 and 25825, that added together give a palindrome (26662).

The spelling of 83725825 in words is "eighty-three million, seven hundred twenty-five thousand, eight hundred twenty-five".