20245252 has 12 divisors (see below), whose sum is σ = 35647696. Its totient is φ = 10060200.

The previous prime is 20245237. The next prime is 20245259. The reversal of 20245252 is 25254202.

It is a happy number.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20245259) 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 3 ways as a sum of consecutive naturals, for example, 14874 + ... + 16177.

Almost surely, 2^20245252 is an apocalyptic number.

It is an amenable number.

20245252 is a deficient number, since it is larger than the sum of its proper divisors (15402444).

20245252 is a wasteful number, since it uses less digits than its factorization.

20245252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31218 (or 31216 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 20245252 is about 4499.4724135169. The cubic root of 20245252 is about 272.5467843249.

Adding to 20245252 its reverse (25254202), we get a palindrome (45499454).

It can be divided in two parts, 202 and 45252, that added together give a palindrome (45454).

The spelling of 20245252 in words is "twenty million, two hundred forty-five thousand, two hundred fifty-two".