2520521005 has 16 divisors (see below), whose sum is σ = 3118052160. Its totient is φ = 1955069568.

The previous prime is 2520520969. The next prime is 2520521021. The reversal of 2520521005 is 5001250252.

It is a cyclic number.

It is not a de Polignac number, because 2520521005 - 2⁹ = 2520520493 is a prime.

It is a super-2 number, since 2×2520521005² = 12706052273292420050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36987 + ... + 80056.

It is an arithmetic number, because the mean of its divisors is an integer number (194878260).

Almost surely, 2^2520521005 is an apocalyptic number.

It is an amenable number.

2520521005 is a deficient number, since it is larger than the sum of its proper divisors (597531155).

2520521005 is a wasteful number, since it uses less digits than its factorization.

2520521005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117180.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 2520521005 is about 50204.7906578645. The cubic root of 2520521005 is about 1360.9121988980.

Adding to 2520521005 its reverse (5001250252), we get a palindrome (7521771257).

The spelling of 2520521005 in words is "two billion, five hundred twenty million, five hundred twenty-one thousand, five".