551560617 has 8 divisors (see below), whose sum is σ = 817126880. Its totient is φ = 367707060.

The previous prime is 551560579. The next prime is 551560621. The reversal of 551560617 is 716065155.

It is not a de Polignac number, because 551560617 - 2⁷ = 551560489 is a prime.

It is a super-2 number, since 2×551560617² = 608438228450841378, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551560687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10214059 + ... + 10214112.

It is an arithmetic number, because the mean of its divisors is an integer number (102140860).

Almost surely, 2^551560617 is an apocalyptic number.

It is an amenable number.

551560617 is a deficient number, since it is larger than the sum of its proper divisors (265566263).

551560617 is a wasteful number, since it uses less digits than its factorization.

551560617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20428180 (or 20428174 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 551560617 is about 23485.3276962447. The cubic root of 551560617 is about 820.0954761920.

The spelling of 551560617 in words is "five hundred fifty-one million, five hundred sixty thousand, six hundred seventeen".