20525296 has 40 divisors (see below), whose sum is σ = 43747200. Its totient is φ = 9251520.

The previous prime is 20525287. The next prime is 20525299. The reversal of 20525296 is 69252502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24045 + ... + 24883.

It is an arithmetic number, because the mean of its divisors is an integer number (1093680).

Almost surely, 2^20525296 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20525296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21873600).

20525296 is an abundant number, since it is smaller than the sum of its proper divisors (23221904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20525296 is a wasteful number, since it uses less digits than its factorization.

20525296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 991 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 20525296 is about 4530.4851837303. The cubic root of 20525296 is about 273.7977088578.

Adding to 20525296 its reverse (69252502), we get a palindrome (89777798).

The spelling of 20525296 in words is "twenty million, five hundred twenty-five thousand, two hundred ninety-six".