825025856 has 14 divisors (see below), whose sum is σ = 1637160810. Its totient is φ = 412512896.

The previous prime is 825025841. The next prime is 825025867. The reversal of 825025856 is 658520528.

It can be written as a sum of positive squares in only one way, i.e., 818875456 + 6150400 = 28616^2 + 2480^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6445451 + ... + 6445578.

Almost surely, 2^825025856 is an apocalyptic number.

It is an amenable number.

825025856 is a deficient number, since it is larger than the sum of its proper divisors (812134954).

825025856 is a wasteful number, since it uses less digits than its factorization.

825025856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12891041 (or 12891031 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 41.

The square root of 825025856 is about 28723.2633243509. The cubic root of 825025856 is about 937.8985255815.

The spelling of 825025856 in words is "eight hundred twenty-five million, twenty-five thousand, eight hundred fifty-six".