525305112402 has 96 divisors (see below), whose sum is σ = 1226536871040. Its totient is φ = 149547928320.

The previous prime is 525305112401. The next prime is 525305112403. The reversal of 525305112402 is 204211503525.

It is an interprime number because it is at equal distance from previous prime (525305112401) and next prime (525305112403).

It is a super-2 number, since 2×525305112402² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 525305112402.

It is not an unprimeable number, because it can be changed into a prime (525305112401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 134312827 + ... + 134316737.

It is an arithmetic number, because the mean of its divisors is an integer number (12776425740).

Almost surely, 2^525305112402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525305112402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (613268435520).

525305112402 is an abundant number, since it is smaller than the sum of its proper divisors (701231758638).

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

525305112402 is a wasteful number, since it uses less digits than its factorization.

525305112402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5456 (or 5449 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

Adding to 525305112402 its reverse (204211503525), we get a palindrome (729516615927).

The spelling of 525305112402 in words is "five hundred twenty-five billion, three hundred five million, one hundred twelve thousand, four hundred two".