55404598911 has 4 divisors (see below), whose sum is σ = 73872798552. Its totient is φ = 36936399272.

The previous prime is 55404598897. The next prime is 55404598913. The reversal of 55404598911 is 11989540455.

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 55404598911 - 2⁷ = 55404598783 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55404598913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9234099816 + ... + 9234099821.

It is an arithmetic number, because the mean of its divisors is an integer number (18468199638).

Almost surely, 2^55404598911 is an apocalyptic number.

55404598911 is a deficient number, since it is larger than the sum of its proper divisors (18468199641).

55404598911 is a wasteful number, since it uses less digits than its factorization.

55404598911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18468199640.

The product of its (nonzero) digits is 1296000, while the sum is 51.

The spelling of 55404598911 in words is "fifty-five billion, four hundred four million, five hundred ninety-eight thousand, nine hundred eleven".