2545222320 has 240 divisors, whose sum is σ = 9445056192. Its totient is φ = 610959360.

The previous prime is 2545222279. The next prime is 2545222363. The reversal of 2545222320 is 232225452.

It is a tau number, because it is divible by the number of its divisors (240).

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, 277000 + ... + 286040.

Almost surely, 2^2545222320 is an apocalyptic number.

2545222320 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 2545222320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4722528096).

2545222320 is an abundant number, since it is smaller than the sum of its proper divisors (6899833872).

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

2545222320 is a wasteful number, since it uses less digits than its factorization.

2545222320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9100 (or 9091 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 2545222320 is about 50450.1964317286. The cubic root of 2545222320 is about 1365.3434389214.

Adding to 2545222320 its reverse (232225452), we get a palindrome (2777447772).

The spelling of 2545222320 in words is "two billion, five hundred forty-five million, two hundred twenty-two thousand, three hundred twenty".