551887667 has 4 divisors (see below), whose sum is σ = 558537000. Its totient is φ = 545238336.

The previous prime is 551887657. The next prime is 551887669. The reversal of 551887667 is 766788155.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 551887667 - 2¹⁸ = 551625523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (551887669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3324542 + ... + 3324707.

It is an arithmetic number, because the mean of its divisors is an integer number (139634250).

Almost surely, 2^551887667 is an apocalyptic number.

551887667 is a deficient number, since it is larger than the sum of its proper divisors (6649333).

551887667 is an equidigital number, since it uses as much as digits as its factorization.

551887667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6649332.

The product of its digits is 2822400, while the sum is 53.

The square root of 551887667 is about 23492.2895223092. The cubic root of 551887667 is about 820.2575370923.

The spelling of 551887667 in words is "five hundred fifty-one million, eight hundred eighty-seven thousand, six hundred sixty-seven".