20367825 has 12 divisors (see below), whose sum is σ = 33674928. Its totient is φ = 10862800.

The previous prime is 20367817. The next prime is 20367827. The reversal of 20367825 is 52876302.

It is not a de Polignac number, because 20367825 - 2³ = 20367817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20367827) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 135711 + ... + 135860.

It is an arithmetic number, because the mean of its divisors is an integer number (2806244).

Almost surely, 2^20367825 is an apocalyptic number.

20367825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20367825 is a deficient number, since it is larger than the sum of its proper divisors (13307103).

20367825 is a wasteful number, since it uses less digits than its factorization.

20367825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271584 (or 271579 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 20367825 is about 4513.0726783423. The cubic root of 20367825 is about 273.0957144023.

The spelling of 20367825 in words is "twenty million, three hundred sixty-seven thousand, eight hundred twenty-five".