2551133321 has 8 divisors (see below), whose sum is σ = 2787285600. Its totient is φ = 2315686240.

The previous prime is 2551133317. The next prime is 2551133327. The reversal of 2551133321 is 1233311552.

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 2551133321 - 2² = 2551133317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2551133327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168716 + ... + 183213.

It is an arithmetic number, because the mean of its divisors is an integer number (348410700).

Almost surely, 2^2551133321 is an apocalyptic number.

It is an amenable number.

2551133321 is a deficient number, since it is larger than the sum of its proper divisors (236152279).

2551133321 is a wasteful number, since it uses less digits than its factorization.

2551133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 352599.

The product of its digits is 2700, while the sum is 26.

The square root of 2551133321 is about 50508.7449952976. The cubic root of 2551133321 is about 1366.3995754540.

Adding to 2551133321 its reverse (1233311552), we get a palindrome (3784444873).

The spelling of 2551133321 in words is "two billion, five hundred fifty-one million, one hundred thirty-three thousand, three hundred twenty-one".