55505550505 has 8 divisors (see below), whose sum is σ = 66615489792. Its totient is φ = 44398554288.

The previous prime is 55505550493. The next prime is 55505550509. The reversal of 55505550505 is 50505550555.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55505550505 - 2¹⁵ = 55505517737 is a prime.

It is a super-2 number, since 2×55505550505² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55505550509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 694059 + ... + 769888.

It is an arithmetic number, because the mean of its divisors is an integer number (8326936224).

Almost surely, 2^55505550505 is an apocalyptic number.

It is an amenable number.

55505550505 is a deficient number, since it is larger than the sum of its proper divisors (11109939287).

55505550505 is a wasteful number, since it uses less digits than its factorization.

55505550505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471535.

The product of its (nonzero) digits is 390625, while the sum is 40.

The spelling of 55505550505 in words is "fifty-five billion, five hundred five million, five hundred fifty thousand, five hundred five".