551360 has 28 divisors (see below), whose sum is σ = 1313688. Its totient is φ = 220416.

The previous prime is 551347. The next prime is 551363. The reversal of 551360 is 63155.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 551360.

It is not an unprimeable number, because it can be changed into a prime (551363) by changing a digit.

551360 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, 542 + ... + 1181.

2⁵⁵¹³⁶⁰ is an apocalyptic number.

It is an amenable number.

551360 is an abundant number, since it is smaller than the sum of its proper divisors (762328).

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

551360 is a wasteful number, since it uses less digits than its factorization.

551360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1740 (or 1730 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 551360 is about 742.5361944040. The cubic root of 551360 is about 81.9996034088. Note that the first 3 decimals are identical.

The spelling of 551360 in words is "five hundred fifty-one thousand, three hundred sixty".