551857679 has 8 divisors (see below), whose sum is σ = 584384640. Its totient is φ = 519678936.

The previous prime is 551857673. The next prime is 551857687. The reversal of 551857679 is 976758155.

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-551857679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 551857679.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551857673) 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, 83789 + ... + 90134.

It is an arithmetic number, because the mean of its divisors is an integer number (73048080).

Almost surely, 2^551857679 is an apocalyptic number.

551857679 is a deficient number, since it is larger than the sum of its proper divisors (32526961).

551857679 is a wasteful number, since it uses less digits than its factorization.

551857679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174109.

The product of its digits is 2646000, while the sum is 53.

The square root of 551857679 is about 23491.6512616717. The cubic root of 551857679 is about 820.2426800057.

The spelling of 551857679 in words is "five hundred fifty-one million, eight hundred fifty-seven thousand, six hundred seventy-nine".