13518025 has 24 divisors (see below), whose sum is σ = 17856000. Its totient is φ = 10123200.

The previous prime is 13518019. The next prime is 13518041. The reversal of 13518025 is 52081531.

It is a happy number.

It is not a de Polignac number, because 13518025 - 2⁵ = 13517993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70680 + ... + 70870.

It is an arithmetic number, because the mean of its divisors is an integer number (744000).

Almost surely, 2^13518025 is an apocalyptic number.

It is an amenable number.

13518025 is a deficient number, since it is larger than the sum of its proper divisors (4337975).

13518025 is a wasteful number, since it uses less digits than its factorization.

13518025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 13518025 is about 3676.6866877666. The cubic root of 13518025 is about 238.2160843837.

Adding to 13518025 its reverse (52081531), we get a palindrome (65599556).

The spelling of 13518025 in words is "thirteen million, five hundred eighteen thousand, twenty-five".