551355 has 32 divisors (see below), whose sum is σ = 1036800. Its totient is φ = 244992.

The previous prime is 551347. The next prime is 551363. The reversal of 551355 is 553155.

It is an interprime number because it is at equal distance from previous prime (551347) and next prime (551363).

It is not a de Polignac number, because 551355 - 2³ = 551347 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551355.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6151 + ... + 6239.

It is an arithmetic number, because the mean of its divisors is an integer number (32400).

2⁵⁵¹³⁵⁵ is an apocalyptic number.

551355 is a deficient number, since it is larger than the sum of its proper divisors (485445).

551355 is a wasteful number, since it uses less digits than its factorization.

551355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163.

The product of its digits is 1875, while the sum is 24.

The square root of 551355 is about 742.5328275571. The cubic root of 551355 is about 81.9993555373. Note that the first 3 decimals are identical.

It can be divided in two parts, 5 and 51355, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 551355 in words is "five hundred fifty-one thousand, three hundred fifty-five".