20052450 has 72 divisors (see below), whose sum is σ = 58786416. Its totient is φ = 4860000.

The previous prime is 20052437. The next prime is 20052457. The reversal of 20052450 is 5425002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20052457) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2925 + ... + 6975.

It is an arithmetic number, because the mean of its divisors is an integer number (816478).

Almost surely, 2^20052450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20052450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29393208).

20052450 is an abundant number, since it is smaller than the sum of its proper divisors (38733966).

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

20052450 is a wasteful number, since it uses less digits than its factorization.

20052450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4080 (or 4072 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 20052450 is about 4477.9962036607. The cubic root of 20052450 is about 271.6788398742.

Adding to 20052450 its reverse (5425002), we get a palindrome (25477452).

It can be divided in two parts, 20052 and 450, that added together give a palindrome (20502).

The spelling of 20052450 in words is "twenty million, fifty-two thousand, four hundred fifty".