2321533651 has 8 divisors (see below), whose sum is σ = 2510395200. Its totient is φ = 2138483328.

The previous prime is 2321533609. The next prime is 2321533667. The reversal of 2321533651 is 1563351232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2321533651 - 2⁹ = 2321533139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2322533651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1451976 + ... + 1453573.

It is an arithmetic number, because the mean of its divisors is an integer number (313799400).

Almost surely, 2^2321533651 is an apocalyptic number.

2321533651 is a deficient number, since it is larger than the sum of its proper divisors (188861549).

2321533651 is a wasteful number, since it uses less digits than its factorization.

2321533651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2905613.

The product of its digits is 16200, while the sum is 31.

The square root of 2321533651 is about 48182.2960328791. The cubic root of 2321533651 is about 1324.1128322028.

Adding to 2321533651 its reverse (1563351232), we get a palindrome (3884884883).

The spelling of 2321533651 in words is "two billion, three hundred twenty-one million, five hundred thirty-three thousand, six hundred fifty-one".