550551687 has 8 divisors (see below), whose sum is σ = 838935936. Its totient is φ = 314600952.

The previous prime is 550551643. The next prime is 550551691. The reversal of 550551687 is 786155055.

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

It is not a de Polignac number, because 550551687 - 2⁷ = 550551559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (550551187) 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, 13108353 + ... + 13108394.

It is an arithmetic number, because the mean of its divisors is an integer number (104866992).

Almost surely, 2^550551687 is an apocalyptic number.

550551687 is a deficient number, since it is larger than the sum of its proper divisors (288384249).

550551687 is a wasteful number, since it uses less digits than its factorization.

550551687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26216757.

The product of its (nonzero) digits is 210000, while the sum is 42.

The square root of 550551687 is about 23463.8378574350. The cubic root of 550551687 is about 819.5951238408.

The spelling of 550551687 in words is "five hundred fifty million, five hundred fifty-one thousand, six hundred eighty-seven".