20126252 has 6 divisors (see below), whose sum is σ = 35220948. Its totient is φ = 10063124.

The previous prime is 20126251. The next prime is 20126287. The reversal of 20126252 is 25262102.

It is not an unprimeable number, because it can be changed into a prime (20126251) 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 as a sum of consecutive naturals, namely, 2515778 + ... + 2515785.

It is an arithmetic number, because the mean of its divisors is an integer number (5870158).

Almost surely, 2^20126252 is an apocalyptic number.

It is an amenable number.

20126252 is a deficient number, since it is larger than the sum of its proper divisors (15094696).

20126252 is a wasteful number, since it uses less digits than its factorization.

20126252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5031567 (or 5031565 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 20126252 is about 4486.2291515258. The cubic root of 20126252 is about 272.0117317604.

Adding to 20126252 its reverse (25262102), we get a palindrome (45388354).

The spelling of 20126252 in words is "twenty million, one hundred twenty-six thousand, two hundred fifty-two".