2521957480 has 96 divisors (see below), whose sum is σ = 6989214600. Its totient is φ = 813797376.

The previous prime is 2521957469. The next prime is 2521957511. The reversal of 2521957480 is 847591252.

It can be written as a sum of positive squares in 4 ways, for example, as 2516226244 + 5731236 = 50162^2 + 2394^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4525 + ... + 71164.

Almost surely, 2^2521957480 is an apocalyptic number.

2521957480 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 2521957480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3494607300).

2521957480 is an abundant number, since it is smaller than the sum of its proper divisors (4467257120).

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

2521957480 is a wasteful number, since it uses less digits than its factorization.

2521957480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75731 (or 75720 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 43.

The square root of 2521957480 is about 50219.0947747966. The cubic root of 2521957480 is about 1361.1706831674.

The spelling of 2521957480 in words is "two billion, five hundred twenty-one million, nine hundred fifty-seven thousand, four hundred eighty".