551313611 has 8 divisors (see below), whose sum is σ = 575856384. Its totient is φ = 526818600.

The previous prime is 551313589. The next prime is 551313629. The reversal of 551313611 is 116313155.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-551313611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551313211) 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, 12770 + ... + 35576.

It is an arithmetic number, because the mean of its divisors is an integer number (71982048).

Almost surely, 2^551313611 is an apocalyptic number.

551313611 is a deficient number, since it is larger than the sum of its proper divisors (24542773).

551313611 is a wasteful number, since it uses less digits than its factorization.

551313611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23881.

The product of its digits is 1350, while the sum is 26.

The square root of 551313611 is about 23480.0683772429. The cubic root of 551313611 is about 819.9730364919.

Adding to 551313611 its reverse (116313155), we get a palindrome (667626766).

The spelling of 551313611 in words is "five hundred fifty-one million, three hundred thirteen thousand, six hundred eleven".