551706641 has 8 divisors (see below), whose sum is σ = 566005440. Its totient is φ = 537474672.

The previous prime is 551706637. The next prime is 551706671. The reversal of 551706641 is 146607155.

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 551706641 - 2² = 551706637 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551706611) 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, 236 + ... + 33218.

It is an arithmetic number, because the mean of its divisors is an integer number (70750680).

Almost surely, 2^551706641 is an apocalyptic number.

It is an amenable number.

551706641 is a deficient number, since it is larger than the sum of its proper divisors (14298799).

551706641 is a wasteful number, since it uses less digits than its factorization.

551706641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33415.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 551706641 is about 23488.4363251367. The cubic root of 551706641 is about 820.1678424026.

The spelling of 551706641 in words is "five hundred fifty-one million, seven hundred six thousand, six hundred forty-one".