13042825 has 12 divisors (see below), whose sum is σ = 17125020. Its totient is φ = 9820160.

The previous prime is 13042819. The next prime is 13042853. The reversal of 13042825 is 52824031.

It can be written as a sum of positive squares in 6 ways, for example, as 1557504 + 11485321 = 1248^2 + 3389^2 .

It is not a de Polignac number, because 13042825 - 2⁷ = 13042697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 13042825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14920 + ... + 15769.

It is an arithmetic number, because the mean of its divisors is an integer number (1427085).

Almost surely, 2^13042825 is an apocalyptic number.

It is an amenable number.

13042825 is a deficient number, since it is larger than the sum of its proper divisors (4082195).

13042825 is a wasteful number, since it uses less digits than its factorization.

13042825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30716 (or 30711 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 13042825 is about 3611.4851515685. The cubic root of 13042825 is about 235.3913804081.

Adding to 13042825 its reverse (52824031), we get a palindrome (65866856).

The spelling of 13042825 in words is "thirteen million, forty-two thousand, eight hundred twenty-five".