55505050501 has 4 divisors (see below), whose sum is σ = 55591373152. Its totient is φ = 55418727852.

The previous prime is 55505050477. The next prime is 55505050529. The reversal of 55505050501 is 10505050555.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55505050501 - 2¹⁹ = 55504526213 is a prime.

It is a super-2 number, since 2×55505050501² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55505050591) 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, 43160361 + ... + 43161646.

It is an arithmetic number, because the mean of its divisors is an integer number (13897843288).

Almost surely, 2^55505050501 is an apocalyptic number.

It is an amenable number.

55505050501 is a deficient number, since it is larger than the sum of its proper divisors (86322651).

55505050501 is an equidigital number, since it uses as much as digits as its factorization.

55505050501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86322650.

The product of its (nonzero) digits is 15625, while the sum is 31.

The spelling of 55505050501 in words is "fifty-five billion, five hundred five million, fifty thousand, five hundred one".