2530122320 has 80 divisors (see below), whose sum is σ = 6446587392. Its totient is φ = 915847680.

The previous prime is 2530122307. The next prime is 2530122323. The reversal of 2530122320 is 232210352.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2530122292 and 2530122301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530122323) 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, 189794 + ... + 202686.

Almost surely, 2^2530122320 is an apocalyptic number.

2530122320 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 2530122320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3223293696).

2530122320 is an abundant number, since it is smaller than the sum of its proper divisors (3916465072).

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

2530122320 is a wasteful number, since it uses less digits than its factorization.

2530122320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13140 (or 13134 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2530122320 is about 50300.3212713398. The cubic root of 2530122320 is about 1362.6380312983.

Adding to 2530122320 its reverse (232210352), we get a palindrome (2762332672).

The spelling of 2530122320 in words is "two billion, five hundred thirty million, one hundred twenty-two thousand, three hundred twenty".