551000655917 has 8 divisors (see below), whose sum is σ = 580876465152. Its totient is φ = 521881196400.

The previous prime is 551000655851. The next prime is 551000655967. The reversal of 551000655917 is 719556000155.

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-551000655917 is a prime.

It is a super-2 number, since 2×551000655917² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551000655967) 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, 189085934 + ... + 189088847.

It is an arithmetic number, because the mean of its divisors is an integer number (72609558144).

Almost surely, 2^551000655917 is an apocalyptic number.

It is an amenable number.

551000655917 is a deficient number, since it is larger than the sum of its proper divisors (29875809235).

551000655917 is a wasteful number, since it uses less digits than its factorization.

551000655917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378174859.

The product of its (nonzero) digits is 236250, while the sum is 44.

The spelling of 551000655917 in words is "five hundred fifty-one billion, six hundred fifty-five thousand, nine hundred seventeen".