13525400002 has 12 divisors (see below), whose sum is σ = 21412095606. Its totient is φ = 6406768080.

The previous prime is 13525399997. The next prime is 13525400003. The reversal of 13525400002 is 20000452531.

It can be written as a sum of positive squares in only one way, i.e., 12690247801 + 835152201 = 112651^2 + 28899^2 .

It is not an unprimeable number, because it can be changed into a prime (13525400003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9365899 + ... + 9367342.

Almost surely, 2^13525400002 is an apocalyptic number.

13525400002 is a deficient number, since it is larger than the sum of its proper divisors (7886695604).

13525400002 is a wasteful number, since it uses less digits than its factorization.

13525400002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18733281 (or 18733262 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 13525400002 its reverse (20000452531), we get a palindrome (33525852533).

The spelling of 13525400002 in words is "thirteen billion, five hundred twenty-five million, four hundred thousand, two".