20047252 has 12 divisors (see below), whose sum is σ = 35117460. Its totient is φ = 10013696.

The previous prime is 20047241. The next prime is 20047253. The reversal of 20047252 is 25274002.

It can be written as a sum of positive squares in 2 ways, for example, as 1089936 + 18957316 = 1044^2 + 4354^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20047253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3858 + ... + 7414.

It is an arithmetic number, because the mean of its divisors is an integer number (2926455).

Almost surely, 2^20047252 is an apocalyptic number.

It is an amenable number.

20047252 is a deficient number, since it is larger than the sum of its proper divisors (15070208).

20047252 is a wasteful number, since it uses less digits than its factorization.

20047252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970 (or 4968 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 20047252 is about 4477.4157725188. The cubic root of 20047252 is about 271.6553629649.

The spelling of 20047252 in words is "twenty million, forty-seven thousand, two hundred fifty-two".