20100252 has 48 divisors (see below), whose sum is σ = 51528960. Its totient is φ = 6069888.

The previous prime is 20100251. The next prime is 20100253. The reversal of 20100252 is 25200102.

It is an interprime number because it is at equal distance from previous prime (20100251) and next prime (20100253).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3328 + ... + 7160.

It is an arithmetic number, because the mean of its divisors is an integer number (1073520).

Almost surely, 2^20100252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20100252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25764480).

20100252 is an abundant number, since it is smaller than the sum of its proper divisors (31428708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20100252 is a wasteful number, since it uses less digits than its factorization.

20100252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882 (or 3880 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 20100252 is about 4483.3304584873. The cubic root of 20100252 is about 271.8945489444.

Adding to 20100252 its reverse (25200102), we get a palindrome (45300354).

The spelling of 20100252 in words is "twenty million, one hundred thousand, two hundred fifty-two".