13025985 has 32 divisors (see below), whose sum is σ = 24026112. Its totient is φ = 5903040.

The previous prime is 13025977. The next prime is 13025989. The reversal of 13025985 is 58952031.

It is not a de Polignac number, because 13025985 - 2³ = 13025977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13025989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13282 + ... + 14228.

It is an arithmetic number, because the mean of its divisors is an integer number (750816).

Almost surely, 2^13025985 is an apocalyptic number.

13025985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13025985 is a deficient number, since it is larger than the sum of its proper divisors (11000127).

13025985 is a wasteful number, since it uses less digits than its factorization.

13025985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 13025985 is about 3609.1529477150. The cubic root of 13025985 is about 235.2900297145.

The spelling of 13025985 in words is "thirteen million, twenty-five thousand, nine hundred eighty-five".