505545046543 has 4 divisors (see below), whose sum is σ = 506055183808. Its totient is φ = 505034909280.

The previous prime is 505545046529. The next prime is 505545046547. The reversal of 505545046543 is 345640545505.

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

It is a cyclic number.

It is not a de Polignac number, because 505545046543 - 2⁵ = 505545046511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505545046493 and 505545046502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505545046547) 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, 255067146 + ... + 255069127.

It is an arithmetic number, because the mean of its divisors is an integer number (126513795952).

Almost surely, 2^505545046543 is an apocalyptic number.

505545046543 is a deficient number, since it is larger than the sum of its proper divisors (510137265).

505545046543 is an equidigital number, since it uses as much as digits as its factorization.

505545046543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510137264.

The product of its (nonzero) digits is 3600000, while the sum is 46.

The spelling of 505545046543 in words is "five hundred five billion, five hundred forty-five million, forty-six thousand, five hundred forty-three".