2523221130 has 128 divisors (see below), whose sum is σ = 6386688000. Its totient is φ = 637228800.

The previous prime is 2523221101. The next prime is 2523221131. The reversal of 2523221130 is 311223252.

It is a junction number, because it is equal to n+sod(n) for n = 2523221097 and 2523221106.

It is not an unprimeable number, because it can be changed into a prime (2523221131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16934296 + ... + 16934444.

It is an arithmetic number, because the mean of its divisors is an integer number (49896000).

Almost surely, 2^2523221130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2523221130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3193344000).

2523221130 is an abundant number, since it is smaller than the sum of its proper divisors (3863466870).

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

2523221130 is a wasteful number, since it uses less digits than its factorization.

2523221130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2523221130 is about 50231.6745689411. The cubic root of 2523221130 is about 1361.3979875723.

Adding to 2523221130 its reverse (311223252), we get a palindrome (2834444382).

The spelling of 2523221130 in words is "two billion, five hundred twenty-three million, two hundred twenty-one thousand, one hundred thirty".