2615213321 has 16 divisors (see below), whose sum is σ = 3127065600. Its totient is φ = 2138442768.

The previous prime is 2615213303. The next prime is 2615213323. The reversal of 2615213321 is 1233125162.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2615213321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2615213323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39590 + ... + 82448.

It is an arithmetic number, because the mean of its divisors is an integer number (195441600).

Almost surely, 2^2615213321 is an apocalyptic number.

It is an amenable number.

2615213321 is a deficient number, since it is larger than the sum of its proper divisors (511852279).

2615213321 is a wasteful number, since it uses less digits than its factorization.

2615213321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43268.

The product of its digits is 2160, while the sum is 26.

The square root of 2615213321 is about 51139.1564361400. The cubic root of 2615213321 is about 1377.7456227824.

Adding to 2615213321 its reverse (1233125162), we get a palindrome (3848338483).

The spelling of 2615213321 in words is "two billion, six hundred fifteen million, two hundred thirteen thousand, three hundred twenty-one".