13525535144 has 16 divisors (see below), whose sum is σ = 27665867520. Its totient is φ = 6147970480.

The previous prime is 13525535143. The next prime is 13525535203. The reversal of 13525535144 is 44153552531.

It is a junction number, because it is equal to n+sod(n) for n = 13525535098 and 13525535107.

It is not an unprimeable number, because it can be changed into a prime (13525535143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76849544 + ... + 76849719.

It is an arithmetic number, because the mean of its divisors is an integer number (1729116720).

Almost surely, 2^13525535144 is an apocalyptic number.

It is an amenable number.

13525535144 is an abundant number, since it is smaller than the sum of its proper divisors (14140332376).

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

13525535144 is a wasteful number, since it uses less digits than its factorization.

13525535144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153699280 (or 153699276 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The spelling of 13525535144 in words is "thirteen billion, five hundred twenty-five million, five hundred thirty-five thousand, one hundred forty-four".