505510606507 has 4 divisors (see below), whose sum is σ = 505519651360. Its totient is φ = 505501561656.

The previous prime is 505510606481. The next prime is 505510606547. The reversal of 505510606507 is 705606015505.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-505510606507 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 505510606507.

It is not an unprimeable number, because it can be changed into a prime (505510606547) 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, 4438068 + ... + 4550545.

It is an arithmetic number, because the mean of its divisors is an integer number (126379912840).

Almost surely, 2^505510606507 is an apocalyptic number.

505510606507 is a deficient number, since it is larger than the sum of its proper divisors (9044853).

505510606507 is an equidigital number, since it uses as much as digits as its factorization.

505510606507 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9044852.

The product of its (nonzero) digits is 157500, while the sum is 40.

The spelling of 505510606507 in words is "five hundred five billion, five hundred ten million, six hundred six thousand, five hundred seven".