551136 has 24 divisors (see below), whose sum is σ = 1446984. Its totient is φ = 183680.

The previous prime is 551129. The next prime is 551143. The reversal of 551136 is 631155.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (551129) and next prime (551143).

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 551136.

It is an unprimeable number.

551136 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2775 + ... + 2966.

It is an arithmetic number, because the mean of its divisors is an integer number (60291).

2⁵⁵¹¹³⁶ is an apocalyptic number.

It is an amenable number.

551136 is an abundant number, since it is smaller than the sum of its proper divisors (895848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

551136 is a wasteful number, since it uses less digits than its factorization.

551136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5754 (or 5746 counting only the distinct ones).

The product of its digits is 450, while the sum is 21.

The square root of 551136 is about 742.3853446829. The cubic root of 551136 is about 81.9884972959.

The spelling of 551136 in words is "five hundred fifty-one thousand, one hundred thirty-six".