20120252 has 6 divisors (see below), whose sum is σ = 35210448. Its totient is φ = 10060124.

The previous prime is 20120251. The next prime is 20120257. The reversal of 20120252 is 25202102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20120251) 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, 2515028 + ... + 2515035.

It is an arithmetic number, because the mean of its divisors is an integer number (5868408).

Almost surely, 2^20120252 is an apocalyptic number.

It is an amenable number.

20120252 is a deficient number, since it is larger than the sum of its proper divisors (15090196).

20120252 is a wasteful number, since it uses less digits than its factorization.

20120252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5030067 (or 5030065 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 20120252 is about 4485.5603886248. The cubic root of 20120252 is about 271.9846985337.

Adding to 20120252 its reverse (25202102), we get a palindrome (45322354).

The spelling of 20120252 in words is "twenty million, one hundred twenty thousand, two hundred fifty-two".