505254 has 16 divisors (see below), whose sum is σ = 1021248. Its totient is φ = 166632.

The previous prime is 505237. The next prime is 505277. The reversal of 505254 is 452505.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 505254.

It is a congruent number.

It is an unprimeable number.

505254 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249 + ... + 1035.

It is an arithmetic number, because the mean of its divisors is an integer number (63828).

2⁵⁰⁵²⁵⁴ is an apocalyptic number.

505254 is an abundant number, since it is smaller than the sum of its proper divisors (515994).

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

505254 is a wasteful number, since it uses less digits than its factorization.

505254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899.

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 505254 is about 710.8122114877. The cubic root of 505254 is about 79.6470913158.

Adding to 505254 its reverse (452505), we get a palindrome (957759).

The spelling of 505254 in words is "five hundred five thousand, two hundred fifty-four".