20125306 has 16 divisors (see below), whose sum is σ = 30969216. Its totient is φ = 9804256.

The previous prime is 20125289. The next prime is 20125307. The reversal of 20125306 is 60352102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20125307) 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 7 ways as a sum of consecutive naturals, for example, 32310 + ... + 32926.

It is an arithmetic number, because the mean of its divisors is an integer number (1935576).

Almost surely, 2^20125306 is an apocalyptic number.

20125306 is a deficient number, since it is larger than the sum of its proper divisors (10843910).

20125306 is a wasteful number, since it uses less digits than its factorization.

20125306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20125306 is about 4486.1237165286. The cubic root of 20125306 is about 272.0074698785.

Adding to 20125306 its reverse (60352102), we get a palindrome (80477408).

The spelling of 20125306 in words is "twenty million, one hundred twenty-five thousand, three hundred six".