825872067855 has 56 divisors (see below), whose sum is σ = 1488610020912. Its totient is φ = 439658803584.

The previous prime is 825872067833. The next prime is 825872067859. The reversal of 825872067855 is 558760278528.

It is a happy number.

825872067855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 825872067855 - 2³⁰ = 824798326031 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 825872067792 and 825872067801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825872067859) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1786707 + ... + 2200923.

It is an arithmetic number, because the mean of its divisors is an integer number (26582321802).

Almost surely, 2^825872067855 is an apocalyptic number.

825872067855 is a deficient number, since it is larger than the sum of its proper divisors (662737953057).

825872067855 is an equidigital number, since it uses as much as digits as its factorization.

825872067855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414787 (or 414772 counting only the distinct ones).

The product of its (nonzero) digits is 75264000, while the sum is 63.

The spelling of 825872067855 in words is "eight hundred twenty-five billion, eight hundred seventy-two million, sixty-seven thousand, eight hundred fifty-five".