2479521520 has 120 divisors (see below), whose sum is σ = 6732948528. Its totient is φ = 846720000.

The previous prime is 2479521497. The next prime is 2479521521. The reversal of 2479521520 is 251259742.

It is a super-2 number, since 2×2479521520² = 12296053936286220800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2479521520.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2479521521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1100395 + ... + 1102645.

Almost surely, 2^2479521520 is an apocalyptic number.

2479521520 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 2479521520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3366474264).

2479521520 is an abundant number, since it is smaller than the sum of its proper divisors (4253427008).

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

2479521520 is a wasteful number, since it uses less digits than its factorization.

2479521520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2559 (or 2546 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 2479521520 is about 49794.7941054082. The cubic root of 2479521520 is about 1353.4928336253.

The spelling of 2479521520 in words is "two billion, four hundred seventy-nine million, five hundred twenty-one thousand, five hundred twenty".