5511559955 has 16 divisors (see below), whose sum is σ = 7316759808. Its totient is φ = 3951948000.

The previous prime is 5511559927. The next prime is 5511559961. The reversal of 5511559955 is 5599551155.

It is not a de Polignac number, because 5511559955 - 2⁶ = 5511559891 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 701801 + ... + 709610.

It is an arithmetic number, because the mean of its divisors is an integer number (457297488).

Almost surely, 2^5511559955 is an apocalyptic number.

5511559955 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

5511559955 is a deficient number, since it is larger than the sum of its proper divisors (1805199853).

5511559955 is a wasteful number, since it uses less digits than its factorization.

5511559955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411498.

The product of its digits is 1265625, while the sum is 50.

The square root of 5511559955 is about 74239.8811623510. The cubic root of 5511559955 is about 1766.4099891521.

The spelling of 5511559955 in words is "five billion, five hundred eleven million, five hundred fifty-nine thousand, nine hundred fifty-five".