505055497807 has 4 divisors (see below), whose sum is σ = 577206283216. Its totient is φ = 432904712400.

The previous prime is 505055497777. The next prime is 505055497813. The reversal of 505055497807 is 708794550505.

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 505055497807 - 2⁷ = 505055497679 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 (505055497307) 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, 36075392694 + ... + 36075392707.

It is an arithmetic number, because the mean of its divisors is an integer number (144301570804).

Almost surely, 2^505055497807 is an apocalyptic number.

505055497807 is a deficient number, since it is larger than the sum of its proper divisors (72150785409).

505055497807 is an equidigital number, since it uses as much as digits as its factorization.

505055497807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72150785408.

The product of its (nonzero) digits is 8820000, while the sum is 55.

It can be divided in two parts, 5050554 and 97807, that added together give a square (5148361 = 2269²).

The spelling of 505055497807 in words is "five hundred five billion, fifty-five million, four hundred ninety-seven thousand, eight hundred seven".