551355671 has 4 divisors (see below), whose sum is σ = 554542872. Its totient is φ = 548168472.

The previous prime is 551355647. The next prime is 551355691. The reversal of 551355671 is 176553155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 176553155 = 5 ⋅35310631.

It is a cyclic number.

It is not a de Polignac number, because 551355671 - 2¹⁰ = 551354647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551355631) 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, 1593341 + ... + 1593686.

It is an arithmetic number, because the mean of its divisors is an integer number (138635718).

Almost surely, 2^551355671 is an apocalyptic number.

551355671 is a deficient number, since it is larger than the sum of its proper divisors (3187201).

551355671 is a wasteful number, since it uses less digits than its factorization.

551355671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3187200.

The product of its digits is 78750, while the sum is 38.

The square root of 551355671 is about 23480.9640134301. The cubic root of 551355671 is about 819.9938880171.

It can be divided in two parts, 55135 and 5671, that added together give a palindrome (60806).

The spelling of 551355671 in words is "five hundred fifty-one million, three hundred fifty-five thousand, six hundred seventy-one".