13508025 has 24 divisors (see below), whose sum is σ = 22439040. Its totient is φ = 7170240.

The previous prime is 13508021. The next prime is 13508029. The reversal of 13508025 is 52080531.

It is an interprime number because it is at equal distance from previous prime (13508021) and next prime (13508029).

It is not a de Polignac number, because 13508025 - 2² = 13508021 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13507986 and 13508004.

It is not an unprimeable number, because it can be changed into a prime (13508021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28944 + ... + 29406.

It is an arithmetic number, because the mean of its divisors is an integer number (934960).

Almost surely, 2^13508025 is an apocalyptic number.

13508025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13508025 is a deficient number, since it is larger than the sum of its proper divisors (8931015).

13508025 is a wasteful number, since it uses less digits than its factorization.

13508025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865 (or 860 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 13508025 is about 3675.3265161071. The cubic root of 13508025 is about 238.1573295363.

Adding to 13508025 its reverse (52080531), we get a palindrome (65588556).

The spelling of 13508025 in words is "thirteen million, five hundred eight thousand, twenty-five".