551511013 has 8 divisors (see below), whose sum is σ = 561724128. Its totient is φ = 541383024.

The previous prime is 551510963. The next prime is 551511047. The reversal of 551511013 is 310115155.

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 551511013 - 2⁹ = 551510501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551511053) 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 7 ways as a sum of consecutive naturals, for example, 8131 + ... + 34192.

It is an arithmetic number, because the mean of its divisors is an integer number (70215516).

Almost surely, 2^551511013 is an apocalyptic number.

It is an amenable number.

551511013 is a deficient number, since it is larger than the sum of its proper divisors (10213115).

551511013 is a wasteful number, since it uses less digits than its factorization.

551511013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42563.

The product of its (nonzero) digits is 375, while the sum is 22.

The square root of 551511013 is about 23484.2716088875. The cubic root of 551511013 is about 820.0708906588.

Adding to 551511013 its reverse (310115155), we get a palindrome (861626168).

The spelling of 551511013 in words is "five hundred fifty-one million, five hundred eleven thousand, thirteen".