825504212605 has 32 divisors (see below), whose sum is σ = 1031657741568. Its totient is φ = 633541824000.

The previous prime is 825504212563. The next prime is 825504212651. The reversal of 825504212605 is 506212405528.

825504212605 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 825504212605 - 2¹⁷ = 825504081533 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49568530 + ... + 49585180.

It is an arithmetic number, because the mean of its divisors is an integer number (32239304424).

Almost surely, 2^825504212605 is an apocalyptic number.

It is an amenable number.

825504212605 is a deficient number, since it is larger than the sum of its proper divisors (206153528963).

825504212605 is a wasteful number, since it uses less digits than its factorization.

825504212605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20437.

The product of its (nonzero) digits is 192000, while the sum is 40.

The spelling of 825504212605 in words is "eight hundred twenty-five billion, five hundred four million, two hundred twelve thousand, six hundred five".