13530242025 has 60 divisors (see below), whose sum is σ = 25103192400. Its totient is φ = 7204468320.

The previous prime is 13530241997. The next prime is 13530242087. The reversal of 13530242025 is 52024203531.

It is a happy number.

It is not a de Polignac number, because 13530242025 - 2⁶ = 13530241961 is a prime.

It is a super-2 number, since 2×13530242025² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 13530242025.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1329406 + ... + 1339544.

It is an arithmetic number, because the mean of its divisors is an integer number (418386540).

Almost surely, 2^13530242025 is an apocalyptic number.

13530242025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13530242025 is a deficient number, since it is larger than the sum of its proper divisors (11572950375).

13530242025 is a wasteful number, since it uses less digits than its factorization.

13530242025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10820 (or 10806 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

Adding to 13530242025 its reverse (52024203531), we get a palindrome (65554445556).

The spelling of 13530242025 in words is "thirteen billion, five hundred thirty million, two hundred forty-two thousand, twenty-five".