13532021425 has 12 divisors (see below), whose sum is σ = 18070453660. Its totient is φ = 9992877120.

The previous prime is 13532021417. The next prime is 13532021467. The reversal of 13532021425 is 52412023531.

It can be written as a sum of positive squares in 6 ways, for example, as 407111329 + 13124910096 = 20177^2 + 114564^2 .

It is not a de Polignac number, because 13532021425 - 2³ = 13532021417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13532021393 and 13532021402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20818170 + ... + 20818819.

Almost surely, 2^13532021425 is an apocalyptic number.

It is an amenable number.

13532021425 is a deficient number, since it is larger than the sum of its proper divisors (4538432235).

13532021425 is a wasteful number, since it uses less digits than its factorization.

13532021425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41637012 (or 41637007 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13532021425 its reverse (52412023531), we get a palindrome (65944044956).

The spelling of 13532021425 in words is "thirteen billion, five hundred thirty-two million, twenty-one thousand, four hundred twenty-five".