13525274752 has 128 divisors (see below), whose sum is σ = 30817480320. Its totient is φ = 5852774400.

The previous prime is 13525274747. The next prime is 13525274771. The reversal of 13525274752 is 25747252531.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 13525274699 and 13525274708.

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, 7803678 + ... + 7805410.

It is an arithmetic number, because the mean of its divisors is an integer number (240761565).

Almost surely, 2^13525274752 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 13525274752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15408740160).

13525274752 is an abundant number, since it is smaller than the sum of its proper divisors (17292205568).

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

13525274752 is a wasteful number, since it uses less digits than its factorization.

13525274752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2022 (or 2010 counting only the distinct ones).

The product of its digits is 588000, while the sum is 43.

It can be divided in two parts, 1352 and 5274752, that multiplied together give a square (7131464704 = 84448²).

The spelling of 13525274752 in words is "thirteen billion, five hundred twenty-five million, two hundred seventy-four thousand, seven hundred fifty-two".