54550550555 has 16 divisors (see below), whose sum is σ = 69924674304. Its totient is φ = 40709867520.

The previous prime is 54550550497. The next prime is 54550550557. The reversal of 54550550555 is 55505505545.

It is not a de Polignac number, because 54550550555 - 2¹⁰ = 54550549531 is a prime.

It is a super-2 number, since 2×54550550555² (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 (54550550557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2830091 + ... + 2849300.

It is an arithmetic number, because the mean of its divisors is an integer number (4370292144).

Almost surely, 2^54550550555 is an apocalyptic number.

54550550555 is a deficient number, since it is larger than the sum of its proper divisors (15374123749).

54550550555 is a wasteful number, since it uses less digits than its factorization.

54550550555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5679526.

The product of its (nonzero) digits is 1562500, while the sum is 44.

The spelling of 54550550555 in words is "fifty-four billion, five hundred fifty million, five hundred fifty thousand, five hundred fifty-five".