83240825 has 6 divisors (see below), whose sum is σ = 103218654. Its totient is φ = 66592640.

The previous prime is 83240821. The next prime is 83240827. The reversal of 83240825 is 52804238.

It can be written as a sum of positive squares in 3 ways, for example, as 14417209 + 68823616 = 3797^2 + 8296^2 .

It is not a de Polignac number, because 83240825 - 2² = 83240821 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 83240791 and 83240800.

It is not an unprimeable number, because it can be changed into a prime (83240821) 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, 1664792 + ... + 1664841.

It is an arithmetic number, because the mean of its divisors is an integer number (17203109).

Almost surely, 2^83240825 is an apocalyptic number.

It is an amenable number.

83240825 is a deficient number, since it is larger than the sum of its proper divisors (19977829).

83240825 is a wasteful number, since it uses less digits than its factorization.

83240825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3329643 (or 3329638 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 83240825 is about 9123.6409946907. The cubic root of 83240825 is about 436.6285455782.

The spelling of 83240825 in words is "eighty-three million, two hundred forty thousand, eight hundred twenty-five".