13020825 has 24 divisors (see below), whose sum is σ = 21700000. Its totient is φ = 6888960.

The previous prime is 13020809. The next prime is 13020853. The reversal of 13020825 is 52802031.

It is not a de Polignac number, because 13020825 - 2⁴ = 13020809 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9801 + ... + 11049.

Almost surely, 2^13020825 is an apocalyptic number.

13020825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13020825 is a deficient number, since it is larger than the sum of its proper divisors (8679175).

13020825 is a wasteful number, since it uses less digits than its factorization.

13020825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1396 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 13020825 is about 3608.4380277344. The cubic root of 13020825 is about 235.2589570317.

Adding to 13020825 its reverse (52802031), we get a palindrome (65822856).

The spelling of 13020825 in words is "thirteen million, twenty thousand, eight hundred twenty-five".