13525053242 has 4 divisors (see below), whose sum is σ = 20287579866. Its totient is φ = 6762526620.

The previous prime is 13525053229. The next prime is 13525053247. The reversal of 13525053242 is 24235052531.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11274404761 + 2250648481 = 106181^2 + 47441^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13525053199 and 13525053208.

It is not an unprimeable number, because it can be changed into a prime (13525053247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3381263309 + ... + 3381263312.

Almost surely, 2^13525053242 is an apocalyptic number.

13525053242 is a deficient number, since it is larger than the sum of its proper divisors (6762526624).

13525053242 is an equidigital number, since it uses as much as digits as its factorization.

13525053242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6762526623.

The product of its (nonzero) digits is 36000, while the sum is 32.

The spelling of 13525053242 in words is "thirteen billion, five hundred twenty-five million, fifty-three thousand, two hundred forty-two".