2521303213 has 16 divisors (see below), whose sum is σ = 2965435200. Its totient is φ = 2113390080.

The previous prime is 2521303207. The next prime is 2521303259. The reversal of 2521303213 is 3123031252.

It is a cyclic number.

It is not a de Polignac number, because 2521303213 - 2¹⁷ = 2521172141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521303313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 123358 + ... + 142336.

It is an arithmetic number, because the mean of its divisors is an integer number (185339700).

Almost surely, 2^2521303213 is an apocalyptic number.

It is an amenable number.

2521303213 is a deficient number, since it is larger than the sum of its proper divisors (444131987).

2521303213 is a wasteful number, since it uses less digits than its factorization.

2521303213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19932.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 2521303213 is about 50212.5802264731. The cubic root of 2521303213 is about 1361.0529642803.

Adding to 2521303213 its reverse (3123031252), we get a palindrome (5644334465).

The spelling of 2521303213 in words is "two billion, five hundred twenty-one million, three hundred three thousand, two hundred thirteen".