13445025 has 48 divisors (see below), whose sum is σ = 24879360. Its totient is φ = 6350400.

The previous prime is 13445021. The next prime is 13445039. The reversal of 13445025 is 52054431.

13445025 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13445025 - 2² = 13445021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13444986 and 13445004.

It is not an unprimeable number, because it can be changed into a prime (13445021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35286 + ... + 35664.

It is an arithmetic number, because the mean of its divisors is an integer number (518320).

Almost surely, 2^13445025 is an apocalyptic number.

13445025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13445025 is a deficient number, since it is larger than the sum of its proper divisors (11434335).

13445025 is a wasteful number, since it uses less digits than its factorization.

13445025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 13445025 is about 3666.7458324787. The cubic root of 13445025 is about 237.7865055770.

Adding to 13445025 its reverse (52054431), we get a palindrome (65499456).

The spelling of 13445025 in words is "thirteen million, four hundred forty-five thousand, twenty-five".