505200410461 has 4 divisors (see below), whose sum is σ = 522621114300. Its totient is φ = 487779706624.

The previous prime is 505200410447. The next prime is 505200410479. The reversal of 505200410461 is 164014002505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 98291655225 + 406908755236 = 313515^2 + 637894^2 .

It is a cyclic number.

It is not a de Polignac number, because 505200410461 - 2⁷ = 505200410333 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 (505200410431) 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, 8710351876 + ... + 8710351933.

It is an arithmetic number, because the mean of its divisors is an integer number (130655278575).

Almost surely, 2^505200410461 is an apocalyptic number.

It is an amenable number.

505200410461 is a deficient number, since it is larger than the sum of its proper divisors (17420703839).

505200410461 is a wasteful number, since it uses less digits than its factorization.

505200410461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17420703838.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 505200410461 its reverse (164014002505), we get a palindrome (669214412966).

The spelling of 505200410461 in words is "five hundred five billion, two hundred million, four hundred ten thousand, four hundred sixty-one".