2553620220 has 144 divisors (see below), whose sum is σ = 7974832320. Its totient is φ = 661017600.

The previous prime is 2553620191. The next prime is 2553620233. The reversal of 2553620220 is 220263552.

2553620220 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1689265 + ... + 1690775.

It is an arithmetic number, because the mean of its divisors is an integer number (55380780).

Almost surely, 2^2553620220 is an apocalyptic number.

2553620220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2553620220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3987416160).

2553620220 is an abundant number, since it is smaller than the sum of its proper divisors (5421212100).

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

2553620220 is a wasteful number, since it uses less digits than its factorization.

2553620220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1796 (or 1791 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2553620220 is about 50533.3574977955. The cubic root of 2553620220 is about 1366.8434297112.

Adding to 2553620220 its reverse (220263552), we get a palindrome (2773883772).

The spelling of 2553620220 in words is "two billion, five hundred fifty-three million, six hundred twenty thousand, two hundred twenty".