825400533 has 4 divisors (see below), whose sum is σ = 1100534048. Its totient is φ = 550267020.

The previous prime is 825400529. The next prime is 825400547. The reversal of 825400533 is 335004528.

825400533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 825400533 - 2² = 825400529 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 825400533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825400553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137566753 + ... + 137566758.

It is an arithmetic number, because the mean of its divisors is an integer number (275133512).

Almost surely, 2^825400533 is an apocalyptic number.

It is an amenable number.

825400533 is a deficient number, since it is larger than the sum of its proper divisors (275133515).

825400533 is a wasteful number, since it uses less digits than its factorization.

825400533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275133514.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 825400533 is about 28729.7847712091. The cubic root of 825400533 is about 938.0404830811.

The spelling of 825400533 in words is "eight hundred twenty-five million, four hundred thousand, five hundred thirty-three".