525435045872 has 80 divisors (see below), whose sum is σ = 1121291804160. Its totient is φ = 236532268800.

The previous prime is 525435045869. The next prime is 525435045893. The reversal of 525435045872 is 278540534525.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 525435045872.

It is a congruent number.

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, 52002773 + ... + 52012875.

It is an arithmetic number, because the mean of its divisors is an integer number (14016147552).

Almost surely, 2^525435045872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525435045872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560645902080).

525435045872 is an abundant number, since it is smaller than the sum of its proper divisors (595856758288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

525435045872 is a wasteful number, since it uses less digits than its factorization.

525435045872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942 (or 12936 counting only the distinct ones).

The product of its (nonzero) digits is 6720000, while the sum is 50.

The spelling of 525435045872 in words is "five hundred twenty-five billion, four hundred thirty-five million, forty-five thousand, eight hundred seventy-two".