551577617 has 8 divisors (see below), whose sum is σ = 557667936. Its totient is φ = 545504832.

The previous prime is 551577613. The next prime is 551577623. The reversal of 551577617 is 716775155.

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

It is not a de Polignac number, because 551577617 - 2² = 551577613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551577613) 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, 64793 + ... + 72809.

It is an arithmetic number, because the mean of its divisors is an integer number (69708492).

Almost surely, 2^551577617 is an apocalyptic number.

It is an amenable number.

551577617 is a deficient number, since it is larger than the sum of its proper divisors (6090319).

551577617 is a wasteful number, since it uses less digits than its factorization.

551577617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8767.

The product of its digits is 257250, while the sum is 44.

The square root of 551577617 is about 23485.6896215547. The cubic root of 551577617 is about 820.1039016666.

The spelling of 551577617 in words is "five hundred fifty-one million, five hundred seventy-seven thousand, six hundred seventeen".