13525235152 has 160 divisors (see below), whose sum is σ = 31818213504. Its totient is φ = 5486745600.

The previous prime is 13525235137. The next prime is 13525235159. The reversal of 13525235152 is 25153252531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13525235159) 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, 16676827 + ... + 16677637.

Almost surely, 2^13525235152 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 13525235152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15909106752).

13525235152 is an abundant number, since it is smaller than the sum of its proper divisors (18292978352).

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

13525235152 is a wasteful number, since it uses less digits than its factorization.

13525235152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1077 (or 1071 counting only the distinct ones).

The product of its digits is 45000, while the sum is 34.

Adding to 13525235152 its reverse (25153252531), we get a palindrome (38678487683).

It can be divided in two parts, 135252 and 35152, that multiplied together give a square (4754378304 = 68952²).

The spelling of 13525235152 in words is "thirteen billion, five hundred twenty-five million, two hundred thirty-five thousand, one hundred fifty-two".