551666667 has 8 divisors (see below), whose sum is σ = 736006096. Its totient is φ = 367552512.

The previous prime is 551666617. The next prime is 551666741. The reversal of 551666667 is 766666155.

It is a happy number.

551666667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 551666667 - 2¹⁴ = 551650283 is a prime.

It is a super-2 number, since 2×551666667² = 608672222957777778, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551666617) 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, 50518 + ... + 60459.

It is an arithmetic number, because the mean of its divisors is an integer number (92000762).

Almost surely, 2^551666667 is an apocalyptic number.

551666667 is a deficient number, since it is larger than the sum of its proper divisors (184339429).

551666667 is a wasteful number, since it uses less digits than its factorization.

551666667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112637.

The product of its digits is 1360800, while the sum is 48.

The square root of 551666667 is about 23487.5853803664. The cubic root of 551666667 is about 820.1480334565.

The spelling of 551666667 in words is "five hundred fifty-one million, six hundred sixty-six thousand, six hundred sixty-seven".