550405522555 has 32 divisors (see below), whose sum is σ = 757803594240. Its totient is φ = 375941710080.

The previous prime is 550405522523. The next prime is 550405522559. The reversal of 550405522555 is 555225504055.

It is not a de Polignac number, because 550405522555 - 2⁵ = 550405522523 is a prime.

It is a super-2 number, since 2×550405522555² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (550405522559) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16950135 + ... + 16982575.

It is an arithmetic number, because the mean of its divisors is an integer number (23681362320).

Almost surely, 2^550405522555 is an apocalyptic number.

550405522555 is a deficient number, since it is larger than the sum of its proper divisors (207398071685).

550405522555 is a wasteful number, since it uses less digits than its factorization.

550405522555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34339.

The product of its (nonzero) digits is 1250000, while the sum is 43.

The spelling of 550405522555 in words is "five hundred fifty billion, four hundred five million, five hundred twenty-two thousand, five hundred fifty-five".