13125825 has 18 divisors (see below), whose sum is σ = 23510214. Its totient is φ = 7000320.

The previous prime is 13125817. The next prime is 13125839. The reversal of 13125825 is 52852131.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3908529 + 9217296 = 1977^2 + 3036^2 .

It is not a de Polignac number, because 13125825 - 2³ = 13125817 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28944 + ... + 29393.

It is an arithmetic number, because the mean of its divisors is an integer number (1306123).

Almost surely, 2^13125825 is an apocalyptic number.

13125825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13125825 is a deficient number, since it is larger than the sum of its proper divisors (10384389).

13125825 is a wasteful number, since it uses less digits than its factorization.

13125825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58353 (or 58345 counting only the distinct ones).

The product of its digits is 2400, while the sum is 27.

The square root of 13125825 is about 3622.9580455755. The cubic root of 13125825 is about 235.8896412584.

Adding to 13125825 its reverse (52852131), we get a palindrome (65977956).

The spelling of 13125825 in words is "thirteen million, one hundred twenty-five thousand, eight hundred twenty-five".