825508240533 has 8 divisors (see below), whose sum is σ = 1222975171200. Its totient is φ = 550338827004.

The previous prime is 825508240507. The next prime is 825508240549. The reversal of 825508240533 is 335042805528.

825508240533 is a `hidden beast` number, since 8 + 2 + 550 + 8 + 2 + 40 + 53 + 3 = 666.

It is not a de Polignac number, because 825508240533 - 2¹⁰ = 825508239509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (825508220533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15287189613 + ... + 15287189666.

It is an arithmetic number, because the mean of its divisors is an integer number (152871896400).

Almost surely, 2^825508240533 is an apocalyptic number.

It is an amenable number.

825508240533 is a deficient number, since it is larger than the sum of its proper divisors (397466930667).

825508240533 is a wasteful number, since it uses less digits than its factorization.

825508240533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30574379288 (or 30574379282 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 825508240533 in words is "eight hundred twenty-five billion, five hundred eight million, two hundred forty thousand, five hundred thirty-three".