825912405 has 48 divisors (see below), whose sum is σ = 1530337536. Its totient is φ = 411037440.

The previous prime is 825912391. The next prime is 825912413. The reversal of 825912405 is 504219528.

825912405 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 825912405 - 2¹⁰ = 825911381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 825912405.

It is a congruent number.

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, 32704 + ... + 52166.

It is an arithmetic number, because the mean of its divisors is an integer number (31882032).

Almost surely, 2^825912405 is an apocalyptic number.

It is an amenable number.

825912405 is a deficient number, since it is larger than the sum of its proper divisors (704425131).

825912405 is a wasteful number, since it uses less digits than its factorization.

825912405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19538 (or 19535 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 825912405 is about 28738.6917760708. The cubic root of 825912405 is about 938.2343515594.

The spelling of 825912405 in words is "eight hundred twenty-five million, nine hundred twelve thousand, four hundred five".