2520123520 has 256 divisors, whose sum is σ = 6847545600. Its totient is φ = 881197056.

The previous prime is 2520123511. The next prime is 2520123533. The reversal of 2520123520 is 253210252.

It is a junction number, because it is equal to n+sod(n) for n = 2520123491 and 2520123500.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15090477 + ... + 15090643.

It is an arithmetic number, because the mean of its divisors is an integer number (26748225).

Almost surely, 2^2520123520 is an apocalyptic number.

2520123520 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 2520123520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3423772800).

2520123520 is an abundant number, since it is smaller than the sum of its proper divisors (4327422080).

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

2520123520 is a wasteful number, since it uses less digits than its factorization.

2520123520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295 (or 283 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 2520123520 is about 50200.8318656175. The cubic root of 2520123520 is about 1360.8406567284.

Adding to 2520123520 its reverse (253210252), we get a palindrome (2773333772).

The spelling of 2520123520 in words is "two billion, five hundred twenty million, one hundred twenty-three thousand, five hundred twenty".