55511551101 has 16 divisors (see below), whose sum is σ = 74743933248. Its totient is φ = 36643776000.

The previous prime is 55511551099. The next prime is 55511551129. The reversal of 55511551101 is 10115511555.

It is a happy number.

It is not a de Polignac number, because 55511551101 - 2¹ = 55511551099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55511551181) 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, 626451 + ... + 709551.

It is an arithmetic number, because the mean of its divisors is an integer number (4671495828).

Almost surely, 2^55511551101 is an apocalyptic number.

It is an amenable number.

55511551101 is a deficient number, since it is larger than the sum of its proper divisors (19232382147).

55511551101 is a wasteful number, since it uses less digits than its factorization.

55511551101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85292.

The product of its (nonzero) digits is 3125, while the sum is 30.

The spelling of 55511551101 in words is "fifty-five billion, five hundred eleven million, five hundred fifty-one thousand, one hundred one".