825245905 has 16 divisors (see below), whose sum is σ = 1137182400. Its totient is φ = 568589760.

The previous prime is 825245899. The next prime is 825245917. The reversal of 825245905 is 509542528.

It is not a de Polignac number, because 825245905 - 2⁷ = 825245777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393810 + ... + 395899.

It is an arithmetic number, because the mean of its divisors is an integer number (71073900).

Almost surely, 2^825245905 is an apocalyptic number.

It is an amenable number.

825245905 is a deficient number, since it is larger than the sum of its proper divisors (311936495).

825245905 is a wasteful number, since it uses less digits than its factorization.

825245905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789744.

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 825245905 is about 28727.0935703562. The cubic root of 825245905 is about 937.9819028822.

The spelling of 825245905 in words is "eight hundred twenty-five million, two hundred forty-five thousand, nine hundred five".