825642248 has 12 divisors (see below), whose sum is σ = 1548231615. Its totient is φ = 412780488.

The previous prime is 825642217. The next prime is 825642253. The reversal of 825642248 is 842246528.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 412821124 + 412821124 = 20318^2 + 20318^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=20318.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 76193 + ... + 86351.

Almost surely, 2^825642248 is an apocalyptic number.

It is an amenable number.

825642248 is a deficient number, since it is larger than the sum of its proper divisors (722589367).

825642248 is an frugal number, since it uses more digits than its factorization.

825642248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20324 (or 10161 counting only the distinct ones).

The product of its digits is 245760, while the sum is 41.

The square root of 825642248 is about 28733.9911602965. The cubic root of 825642248 is about 938.1320411861.

The spelling of 825642248 in words is "eight hundred twenty-five million, six hundred forty-two thousand, two hundred forty-eight".