2520521424 has 240 divisors, whose sum is σ = 7633761408. Its totient is φ = 774478848.

The previous prime is 2520521329. The next prime is 2520521449. The reversal of 2520521424 is 4241250252.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14569402 + ... + 14569574.

Almost surely, 2^2520521424 is an apocalyptic number.

2520521424 is a gapful number since it is divisible by the number (24) 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 2520521424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3816880704).

2520521424 is an abundant number, since it is smaller than the sum of its proper divisors (5113239984).

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

2520521424 is a wasteful number, since it uses less digits than its factorization.

2520521424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 27.

The square root of 2520521424 is about 50204.7948307729. The cubic root of 2520521424 is about 1360.9122743086.

Adding to 2520521424 its reverse (4241250252), we get a palindrome (6761771676).

The spelling of 2520521424 in words is "two billion, five hundred twenty million, five hundred twenty-one thousand, four hundred twenty-four".