553217 has 4 divisors (see below), whose sum is σ = 632256. Its totient is φ = 474180.

The previous prime is 553211. The next prime is 553229. The reversal of 553217 is 712355.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 553217 - 2⁶ = 553153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 553192 and 553201.

It is not an unprimeable number, because it can be changed into a prime (553211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39509 + ... + 39522.

It is an arithmetic number, because the mean of its divisors is an integer number (158064).

2⁵⁵³²¹⁷ is an apocalyptic number.

It is an amenable number.

553217 is a deficient number, since it is larger than the sum of its proper divisors (79039).

553217 is an equidigital number, since it uses as much as digits as its factorization.

553217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79038.

The product of its digits is 1050, while the sum is 23.

The square root of 553217 is about 743.7855873839. The cubic root of 553217 is about 82.0915594379.

It can be divided in two parts, 5 and 53217, that multiplied together give a triangular number (266085 = T₇₂₉).

The spelling of 553217 in words is "five hundred fifty-three thousand, two hundred seventeen".