20322525 has 12 divisors (see below), whose sum is σ = 33600032. Its totient is φ = 10838640.

The previous prime is 20322521. The next prime is 20322539. The reversal of 20322525 is 52522302.

It is not a de Polignac number, because 20322525 - 2² = 20322521 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322521) 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, 135409 + ... + 135558.

Almost surely, 2^20322525 is an apocalyptic number.

20322525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20322525 is a deficient number, since it is larger than the sum of its proper divisors (13277507).

20322525 is a wasteful number, since it uses less digits than its factorization.

20322525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270980 (or 270975 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 20322525 is about 4508.0511310321. The cubic root of 20322525 is about 272.8931004132.

Adding to 20322525 its reverse (52522302), we get a palindrome (72844827).

The spelling of 20322525 in words is "twenty million, three hundred twenty-two thousand, five hundred twenty-five".