20125284 has 24 divisors (see below), whose sum is σ = 47251680. Its totient is φ = 6666624.

The previous prime is 20125267. The next prime is 20125289. The reversal of 20125284 is 48252102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20125289) 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, 3189 + ... + 7100.

It is an arithmetic number, because the mean of its divisors is an integer number (1968820).

Almost surely, 2^20125284 is an apocalyptic number.

It is an amenable number.

20125284 is an abundant number, since it is smaller than the sum of its proper divisors (27126396).

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

20125284 is a wasteful number, since it uses less digits than its factorization.

20125284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10459 (or 10457 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 20125284 is about 4486.1212645224. The cubic root of 20125284 is about 272.0073707634.

Adding to 20125284 its reverse (48252102), we get a palindrome (68377386).

The spelling of 20125284 in words is "twenty million, one hundred twenty-five thousand, two hundred eighty-four".