2251322013 has 32 divisors (see below), whose sum is σ = 3126896640. Its totient is φ = 1439717760.

The previous prime is 2251322011. The next prime is 2251322039. The reversal of 2251322013 is 3102231522.

It is not a de Polignac number, because 2251322013 - 2¹ = 2251322011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2251322011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4304370 + ... + 4304892.

It is an arithmetic number, because the mean of its divisors is an integer number (97715520).

Almost surely, 2^2251322013 is an apocalyptic number.

It is an amenable number.

2251322013 is a deficient number, since it is larger than the sum of its proper divisors (875574627).

2251322013 is a wasteful number, since it uses less digits than its factorization.

2251322013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1089.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2251322013 is about 47448.0980967625. The cubic root of 2251322013 is about 1310.6272879080.

Adding to 2251322013 its reverse (3102231522), we get a palindrome (5353553535).

The spelling of 2251322013 in words is "two billion, two hundred fifty-one million, three hundred twenty-two thousand, thirteen".