825019047 has 16 divisors (see below), whose sum is σ = 1234854880. Its totient is φ = 544340736.

The previous prime is 825019043. The next prime is 825019079. The reversal of 825019047 is 740910528.

825019047 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 825019047 - 2² = 825019043 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825019043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154888 + ... + 160125.

It is an arithmetic number, because the mean of its divisors is an integer number (77178430).

Almost surely, 2^825019047 is an apocalyptic number.

825019047 is a deficient number, since it is larger than the sum of its proper divisors (409835833).

825019047 is a wasteful number, since it uses less digits than its factorization.

825019047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315119 (or 315113 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 825019047 is about 28723.1447964877. The cubic root of 825019047 is about 937.8959453922.

The spelling of 825019047 in words is "eight hundred twenty-five million, nineteen thousand, forty-seven".