2520521293 has 4 divisors (see below), whose sum is σ = 2520959680. Its totient is φ = 2520082908.

The previous prime is 2520521287. The next prime is 2520521299. The reversal of 2520521293 is 3921250252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (2520521287) and next prime (2520521299).

It is a cyclic number.

It is not a de Polignac number, because 2520521293 - 2¹³ = 2520513101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520521299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210453 + ... + 222106.

It is an arithmetic number, because the mean of its divisors is an integer number (630239920).

Almost surely, 2^2520521293 is an apocalyptic number.

It is an amenable number.

2520521293 is a deficient number, since it is larger than the sum of its proper divisors (438387).

2520521293 is an equidigital number, since it uses as much as digits as its factorization.

2520521293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438386.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 2520521293 is about 50204.7935261166. The cubic root of 2520521293 is about 1360.9122507315.

The spelling of 2520521293 in words is "two billion, five hundred twenty million, five hundred twenty-one thousand, two hundred ninety-three".