825528172 has 24 divisors (see below), whose sum is σ = 1675702784. Its totient is φ = 348516432.

The previous prime is 825528139. The next prime is 825528173. The reversal of 825528172 is 271825528.

825528172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×825528172³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (825528173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218148 + ... + 221899.

Almost surely, 2^825528172 is an apocalyptic number.

It is an amenable number.

825528172 is an abundant number, since it is smaller than the sum of its proper divisors (850174612).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

825528172 is a wasteful number, since it uses less digits than its factorization.

825528172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440125 (or 440123 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 825528172 is about 28732.0060559648. The cubic root of 825528172 is about 938.0888330936.

The spelling of 825528172 in words is "eight hundred twenty-five million, five hundred twenty-eight thousand, one hundred seventy-two".