505400052305 has 4 divisors (see below), whose sum is σ = 606480062772. Its totient is φ = 404320041840.

The previous prime is 505400052259. The next prime is 505400052323. The reversal of 505400052305 is 503250004505.

It is a happy number.

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 325939369921 + 179460682384 = 570911^2 + 423628^2 .

It is a de Polignac number, because none of the positive numbers 2^k-505400052305 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50540005226 + ... + 50540005235.

It is an arithmetic number, because the mean of its divisors is an integer number (151620015693).

Almost surely, 2^505400052305 is an apocalyptic number.

It is an amenable number.

505400052305 is a deficient number, since it is larger than the sum of its proper divisors (101080010467).

505400052305 is a wasteful number, since it uses less digits than its factorization.

505400052305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101080010466.

The product of its (nonzero) digits is 15000, while the sum is 29.

The spelling of 505400052305 in words is "five hundred five billion, four hundred million, fifty-two thousand, three hundred five".