55545149011 has 4 divisors (see below), whose sum is σ = 60594708024. Its totient is φ = 50495590000.

The previous prime is 55545148999. The next prime is 55545149039. The reversal of 55545149011 is 11094154555.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55545149011 - 2¹⁷ = 55545017939 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55545149311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2524779490 + ... + 2524779511.

It is an arithmetic number, because the mean of its divisors is an integer number (15148677006).

Almost surely, 2^55545149011 is an apocalyptic number.

55545149011 is a deficient number, since it is larger than the sum of its proper divisors (5049559013).

55545149011 is a wasteful number, since it uses less digits than its factorization.

55545149011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5049559012.

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 55545149011 in words is "fifty-five billion, five hundred forty-five million, one hundred forty-nine thousand, eleven".