825528651 has 16 divisors (see below), whose sum is σ = 1113585408. Its totient is φ = 543932000.

The previous prime is 825528643. The next prime is 825528661. The reversal of 825528651 is 156825528.

It is a cyclic number.

It is not a de Polignac number, because 825528651 - 2³ = 825528643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (825528631) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 193936 + ... + 198146.

It is an arithmetic number, because the mean of its divisors is an integer number (69599088).

Almost surely, 2^825528651 is an apocalyptic number.

825528651 is a deficient number, since it is larger than the sum of its proper divisors (288056757).

825528651 is a wasteful number, since it uses less digits than its factorization.

825528651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4962.

The product of its digits is 192000, while the sum is 42.

The square root of 825528651 is about 28732.0143916155. The cubic root of 825528651 is about 938.0890145307.

The spelling of 825528651 in words is "eight hundred twenty-five million, five hundred twenty-eight thousand, six hundred fifty-one".