551755 has 8 divisors (see below), whose sum is σ = 667152. Its totient is φ = 438048.

The previous prime is 551753. The next prime is 551767. The reversal of 551755 is 557155.

551755 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 a cyclic number.

It is not a de Polignac number, because 551755 - 2¹ = 551753 is a prime.

It is an Ulam number.

It is a Duffinian number.

551755 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (551753) 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, 477 + ... + 1153.

It is an arithmetic number, because the mean of its divisors is an integer number (83394).

2⁵⁵¹⁷⁵⁵ is an apocalyptic number.

551755 is a deficient number, since it is larger than the sum of its proper divisors (115397).

551755 is a wasteful number, since it uses less digits than its factorization.

551755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its digits is 4375, while the sum is 28.

The square root of 551755 is about 742.8021270837. The cubic root of 551755 is about 82.0191805221.

The spelling of 551755 in words is "five hundred fifty-one thousand, seven hundred fifty-five".