825543056836 has 9 divisors (see below), whose sum is σ = 1444703529549. Its totient is φ = 412770619824.

The previous prime is 825543056791. The next prime is 825543056861. The reversal of 825543056836 is 638650345528.

It is a happy number.

The square root of 825543056836 is 908594.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 107551202500 + 717991854336 = 327950^2 + 847344^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1590040 + ... + 2044336.

Almost surely, 2^825543056836 is an apocalyptic number.

825543056836 is the 908594-th square number.

It is an amenable number.

825543056836 is a deficient number, since it is larger than the sum of its proper divisors (619160472713).

825543056836 is an frugal number, since it uses more digits than its factorization.

825543056836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 908598 (or 454299 counting only the distinct ones).

The product of its (nonzero) digits is 20736000, while the sum is 55.

The spelling of 825543056836 in words is "eight hundred twenty-five billion, five hundred forty-three million, fifty-six thousand, eight hundred thirty-six".