505300253 has 4 divisors (see below), whose sum is σ = 507414720. Its totient is φ = 503185788.

The previous prime is 505300247. The next prime is 505300291. The reversal of 505300253 is 352003505.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 505300253 - 2¹⁰ = 505299229 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 (505302253) 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, 1056875 + ... + 1057352.

It is an arithmetic number, because the mean of its divisors is an integer number (126853680).

Almost surely, 2^505300253 is an apocalyptic number.

It is an amenable number.

505300253 is a deficient number, since it is larger than the sum of its proper divisors (2114467).

505300253 is a wasteful number, since it uses less digits than its factorization.

505300253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114466.

The product of its (nonzero) digits is 2250, while the sum is 23.

The square root of 505300253 is about 22478.8846031114. The cubic root of 505300253 is about 796.4952164755.

Adding to 505300253 its reverse (352003505), we get a palindrome (857303758).

The spelling of 505300253 in words is "five hundred five million, three hundred thousand, two hundred fifty-three".