2565224200 has 288 divisors, whose sum is σ = 7896369600. Its totient is φ = 756518400.

The previous prime is 2565224191. The next prime is 2565224213. The reversal of 2565224200 is 24225652.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 3218202 + ... + 3218998.

It is an arithmetic number, because the mean of its divisors is an integer number (27417950).

Almost surely, 2^2565224200 is an apocalyptic number.

2565224200 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 2565224200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3948184800).

2565224200 is an abundant number, since it is smaller than the sum of its proper divisors (5331145400).

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

2565224200 is a wasteful number, since it uses less digits than its factorization.

2565224200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861 (or 841 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 2565224200 is about 50648.0424103440. The cubic root of 2565224200 is about 1368.9106726031.

Adding to 2565224200 its reverse (24225652), we get a palindrome (2589449852).

The spelling of 2565224200 in words is "two billion, five hundred sixty-five million, two hundred twenty-four thousand, two hundred".