20150252 has 24 divisors (see below), whose sum is σ = 36091440. Its totient is φ = 9840960.

The previous prime is 20150233. The next prime is 20150257. The reversal of 20150252 is 25205102.

It is a self number, because there is not a number n which added to its sum of digits gives 20150252.

It is not an unprimeable number, because it can be changed into a prime (20150257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65483 + ... + 65789.

It is an arithmetic number, because the mean of its divisors is an integer number (1503810).

Almost surely, 2^20150252 is an apocalyptic number.

It is an amenable number.

20150252 is a deficient number, since it is larger than the sum of its proper divisors (15941188).

20150252 is a wasteful number, since it uses less digits than its factorization.

20150252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 639 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 20150252 is about 4488.9032067978. The cubic root of 20150252 is about 272.1198109721.

Adding to 20150252 its reverse (25205102), we get a palindrome (45355354).

It can be divided in two parts, 20150 and 252, that added together give a palindrome (20402).

The spelling of 20150252 in words is "twenty million, one hundred fifty thousand, two hundred fifty-two".