20940325 has 12 divisors (see below), whose sum is σ = 29675680. Its totient is φ = 14358960.

The previous prime is 20940289. The next prime is 20940329. The reversal of 20940325 is 52304902.

20940325 = 13⁵ + 14⁵ + ... + 22⁵.

It is a happy number.

It is not a de Polignac number, because 20940325 - 2¹¹ = 20938277 is a prime.

It is a super-2 number, since 2×20940325² = 876994422211250, which contains 22 as substring.

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 20940325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20940329) 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, 59655 + ... + 60004.

Almost surely, 2^20940325 is an apocalyptic number.

20940325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20940325 is a deficient number, since it is larger than the sum of its proper divisors (8735355).

20940325 is a wasteful number, since it uses less digits than its factorization.

20940325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119676 (or 119671 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20940325 is about 4576.0599864949. The cubic root of 20940325 is about 275.6308382787.

The spelling of 20940325 in words is "twenty million, nine hundred forty thousand, three hundred twenty-five".