525449075502 has 128 divisors (see below), whose sum is σ = 1180461864960. Its totient is φ = 154811865600.

The previous prime is 525449075491. The next prime is 525449075509. The reversal of 525449075502 is 205570944525.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525449075509) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 340536543 + ... + 340538085.

It is an arithmetic number, because the mean of its divisors is an integer number (9222358320).

Almost surely, 2^525449075502 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 525449075502, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (590230932480).

525449075502 is an abundant number, since it is smaller than the sum of its proper divisors (655012789458).

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

525449075502 is a wasteful number, since it uses less digits than its factorization.

525449075502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738.

The product of its (nonzero) digits is 2520000, while the sum is 48.

The spelling of 525449075502 in words is "five hundred twenty-five billion, four hundred forty-nine million, seventy-five thousand, five hundred two".