551460 has 96 divisors (see below), whose sum is σ = 1919232. Its totient is φ = 115200.

The previous prime is 551443. The next prime is 551461. The reversal of 551460 is 64155.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (551461) by changing a digit.

551460 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 31 ways as a sum of consecutive naturals, for example, 5410 + ... + 5510.

It is an arithmetic number, because the mean of its divisors is an integer number (19992).

2⁵⁵¹⁴⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 551460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (959616).

551460 is an abundant number, since it is smaller than the sum of its proper divisors (1367772).

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

551460 is a wasteful number, since it uses less digits than its factorization.

551460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133 (or 131 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 551460 is about 742.6035281360. The cubic root of 551460 is about 82.0045605237.

The spelling of 551460 in words is "five hundred fifty-one thousand, four hundred sixty".