525244342128 has 160 divisors (see below), whose sum is σ = 1489163616000. Its totient is φ = 158207508480.

The previous prime is 525244342127. The next prime is 525244342151. The reversal of 525244342128 is 821243442525.

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 525244342128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525244342123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67708426 + ... + 67716182.

It is an arithmetic number, because the mean of its divisors is an integer number (9307272600).

Almost surely, 2^525244342128 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 525244342128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (744581808000).

525244342128 is an abundant number, since it is smaller than the sum of its proper divisors (963919273872).

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

525244342128 is a wasteful number, since it uses less digits than its factorization.

525244342128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8535 (or 8529 counting only the distinct ones).

The product of its digits is 614400, while the sum is 42.

The spelling of 525244342128 in words is "five hundred twenty-five billion, two hundred forty-four million, three hundred forty-two thousand, one hundred twenty-eight".