553280 has 112 divisors (see below), whose sum is σ = 1706880. Its totient is φ = 165888.

The previous prime is 553279. The next prime is 553309. The reversal of 553280 is 82355.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×553280² = 612237516800, which contains 22 as substring.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29111 + ... + 29129.

It is an arithmetic number, because the mean of its divisors is an integer number (15240).

2⁵⁵³²⁸⁰ 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 553280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (853440).

553280 is an abundant number, since it is smaller than the sum of its proper divisors (1153600).

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

553280 is a wasteful number, since it uses less digits than its factorization.

553280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 46 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 553280 is about 743.8279370930. The cubic root of 553280 is about 82.0946754979.

The spelling of 553280 in words is "five hundred fifty-three thousand, two hundred eighty".