500505550551 has 20 divisors (see below), whose sum is σ = 752431026072. Its totient is φ = 331545069648.

The previous prime is 500505550537. The next prime is 500505550577. The reversal of 500505550551 is 155055505005.

It is a happy number.

500505550551 is a `hidden beast` number, since 5 + 0 + 0 + 5 + 0 + 55 + 50 + 551 = 666.

It is not a de Polignac number, because 500505550551 - 2⁷ = 500505550423 is a prime.

It is a super-2 number, since 2×500505550551² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500505550451) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 19665885 + ... + 19691318.

Almost surely, 2^500505550551 is an apocalyptic number.

500505550551 is a deficient number, since it is larger than the sum of its proper divisors (251925475521).

500505550551 is a wasteful number, since it uses less digits than its factorization.

500505550551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39357372 (or 39357363 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 36.

The spelling of 500505550551 in words is "five hundred billion, five hundred five million, five hundred fifty thousand, five hundred fifty-one".