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500053 = 717043
BaseRepresentation
bin1111010000101010101
3221101221111
41322011111
5112000203
614415021
74151611
oct1720525
9841844
10500053
11311774
12201471
131467b8
14d0341
159d26d
hex7a155

500053 has 4 divisors (see below), whose sum is σ = 507168. Its totient is φ = 492940.

The previous prime is 500041. The next prime is 500057. The reversal of 500053 is 350005.

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, and also an emirpimes, since its reverse is a distinct semiprime: 350005 = 570001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-500053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500057) 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, 3451 + ... + 3592.

It is an arithmetic number, because the mean of its divisors is an integer number (126792).

2500053 is an apocalyptic number.

It is an amenable number.

500053 is a deficient number, since it is larger than the sum of its proper divisors (7115).

500053 is an equidigital number, since it uses as much as digits as its factorization.

500053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7114.

The product of its (nonzero) digits is 75, while the sum is 13.

The square root of 500053 is about 707.1442568529. The cubic root of 500053 is about 79.3728569079.

Adding to 500053 its reverse (350005), we get a palindrome (850058).

The spelling of 500053 in words is "five hundred thousand, fifty-three".

Divisors: 1 71 7043 500053