5511199955 has 16 divisors (see below), whose sum is σ = 6705879840. Its totient is φ = 4347602688.

The previous prime is 5511199943. The next prime is 5511199973. The reversal of 5511199955 is 5599911155.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5511199955 is a prime.

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, 149384 + ... + 182586.

It is an arithmetic number, because the mean of its divisors is an integer number (419117490).

Almost surely, 2^5511199955 is an apocalyptic number.

5511199955 is a deficient number, since it is larger than the sum of its proper divisors (1194679885).

5511199955 is a wasteful number, since it uses less digits than its factorization.

5511199955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33670.

The product of its digits is 455625, while the sum is 50.

The square root of 5511199955 is about 74237.4565499115. The cubic root of 5511199955 is about 1766.3715292940.

The spelling of 5511199955 in words is "five billion, five hundred eleven million, one hundred ninety-nine thousand, nine hundred fifty-five".