52250020 has 48 divisors (see below), whose sum is σ = 115774848. Its totient is φ = 19768320.

The previous prime is 52249991. The next prime is 52250021. The reversal of 52250020 is 2005225.

It is a junction number, because it is equal to n+sod(n) for n = 52249976 and 52250003.

It is not an unprimeable number, because it can be changed into a prime (52250021) 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, 44035 + ... + 45205.

It is an arithmetic number, because the mean of its divisors is an integer number (2411976).

Almost surely, 2^52250020 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 52250020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57887424).

52250020 is an abundant number, since it is smaller than the sum of its proper divisors (63524828).

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

52250020 is a wasteful number, since it uses less digits than its factorization.

52250020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300 (or 1298 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 52250020 is about 7228.4175308293. The cubic root of 52250020 is about 373.8483661852.

Adding to 52250020 its reverse (2005225), we get a palindrome (54255245).

The spelling of 52250020 in words is "fifty-two million, two hundred fifty thousand, twenty".