505433335253 has 16 divisors (see below), whose sum is σ = 663316477440. Its totient is φ = 373115516400.

The previous prime is 505433335249. The next prime is 505433335259. The reversal of 505433335253 is 352533334505.

It is not a de Polignac number, because 505433335253 - 2² = 505433335249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505433335253.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505433335259) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172737203 + ... + 172740128.

It is an arithmetic number, because the mean of its divisors is an integer number (41457279840).

Almost surely, 2^505433335253 is an apocalyptic number.

It is an amenable number.

505433335253 is a deficient number, since it is larger than the sum of its proper divisors (157883142187).

505433335253 is a wasteful number, since it uses less digits than its factorization.

505433335253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345477368.

The product of its (nonzero) digits is 1215000, while the sum is 41.

Adding to 505433335253 its reverse (352533334505), we get a palindrome (857966669758).

The spelling of 505433335253 in words is "five hundred five billion, four hundred thirty-three million, three hundred thirty-five thousand, two hundred fifty-three".