2530421520 has 320 divisors, whose sum is σ = 9166556160. Its totient is φ = 570931200.

The previous prime is 2530421513. The next prime is 2530421681. The reversal of 2530421520 is 251240352.

It is a super-2 number, since 2×2530421520² = 12806066137758220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3059347 + ... + 3060173.

It is an arithmetic number, because the mean of its divisors is an integer number (28645488).

Almost surely, 2^2530421520 is an apocalyptic number.

2530421520 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 2530421520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4583278080).

2530421520 is an abundant number, since it is smaller than the sum of its proper divisors (6636134640).

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

2530421520 is a wasteful number, since it uses less digits than its factorization.

2530421520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2530421520 is about 50303.2953194917. The cubic root of 2530421520 is about 1362.6917421704.

Adding to 2530421520 its reverse (251240352), we get a palindrome (2781661872).

The spelling of 2530421520 in words is "two billion, five hundred thirty million, four hundred twenty-one thousand, five hundred twenty".