551605167 has 8 divisors (see below), whose sum is σ = 817192880. Its totient is φ = 367736760.

The previous prime is 551605141. The next prime is 551605189. The reversal of 551605167 is 761506155.

551605167 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 551605167 - 2⁷ = 551605039 is a prime.

It is a super-2 number, since 2×551605167² = 608536520522195778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551605667) 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, 10214884 + ... + 10214937.

It is an arithmetic number, because the mean of its divisors is an integer number (102149110).

Almost surely, 2^551605167 is an apocalyptic number.

551605167 is a deficient number, since it is larger than the sum of its proper divisors (265587713).

551605167 is a wasteful number, since it uses less digits than its factorization.

551605167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20429830 (or 20429824 counting only the distinct ones).

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

The square root of 551605167 is about 23486.2761416109. The cubic root of 551605167 is about 820.1175555239.

The spelling of 551605167 in words is "five hundred fifty-one million, six hundred five thousand, one hundred sixty-seven".