13805025 has 24 divisors (see below), whose sum is σ = 24581760. Its totient is φ = 6795840.

The previous prime is 13805009. The next prime is 13805041. The reversal of 13805025 is 52050831.

13805025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13805009) and next prime (13805041).

It is not a de Polignac number, because 13805025 - 2⁴ = 13805009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13804986 and 13805004.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6105 + ... + 8054.

It is an arithmetic number, because the mean of its divisors is an integer number (1024240).

Almost surely, 2^13805025 is an apocalyptic number.

13805025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13805025 is a deficient number, since it is larger than the sum of its proper divisors (10776735).

13805025 is a wasteful number, since it uses less digits than its factorization.

13805025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14185 (or 14180 counting only the distinct ones).

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

The square root of 13805025 is about 3715.5114049078. The cubic root of 13805025 is about 239.8901406921.

Adding to 13805025 its reverse (52050831), we get a palindrome (65855856).

It can be divided in two parts, 138050 and 25, that added together give a triangular number (138075 = T₅₂₅).

The spelling of 13805025 in words is "thirteen million, eight hundred five thousand, twenty-five".