55740386913 has 16 divisors (see below), whose sum is σ = 80366618880. Its totient is φ = 34230223616.

The previous prime is 55740386899. The next prime is 55740386917. The reversal of 55740386913 is 31968304755.

It is a cyclic number.

It is not a de Polignac number, because 55740386913 - 2¹⁰ = 55740385889 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55740386917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11624718 + ... + 11629511.

It is an arithmetic number, because the mean of its divisors is an integer number (5022913680).

Almost surely, 2^55740386913 is an apocalyptic number.

It is an amenable number.

55740386913 is a deficient number, since it is larger than the sum of its proper divisors (24626231967).

55740386913 is a wasteful number, since it uses less digits than its factorization.

55740386913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23254296.

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 55740386913 in words is "fifty-five billion, seven hundred forty million, three hundred eighty-six thousand, nine hundred thirteen".