825317869025 has 48 divisors (see below), whose sum is σ = 1108918608000. Its totient is φ = 605711208960.

The previous prime is 825317868967. The next prime is 825317869073. The reversal of 825317869025 is 520968713528.

It is a happy number.

It is not a de Polignac number, because 825317869025 - 2⁸ = 825317868769 is a prime.

It is a super-2 number, since 2×825317869025² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 60593666 + ... + 60607284.

It is an arithmetic number, because the mean of its divisors is an integer number (23102471000).

Almost surely, 2^825317869025 is an apocalyptic number.

It is an amenable number.

825317869025 is a deficient number, since it is larger than the sum of its proper divisors (283600738975).

825317869025 is a wasteful number, since it uses less digits than its factorization.

825317869025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14778 (or 14773 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 825317869025 in words is "eight hundred twenty-five billion, three hundred seventeen million, eight hundred sixty-nine thousand, twenty-five".