55328318745 has 128 divisors (see below), whose sum is σ = 108982444032. Its totient is φ = 23394201600.

The previous prime is 55328318719. The next prime is 55328318761. The reversal of 55328318745 is 54781382355.

It is a happy number.

It is not a de Polignac number, because 55328318745 - 2⁵ = 55328318713 is a prime.

It is a super-2 number, since 2×55328318745² (a number of 22 digits) contains 22 as substring.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 58424362 + ... + 58425308.

It is an arithmetic number, because the mean of its divisors is an integer number (851425344).

Almost surely, 2^55328318745 is an apocalyptic number.

It is an amenable number.

55328318745 is a deficient number, since it is larger than the sum of its proper divisors (53654125287).

55328318745 is a wasteful number, since it uses less digits than its factorization.

55328318745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1511.

The product of its digits is 4032000, while the sum is 51.

The spelling of 55328318745 in words is "fifty-five billion, three hundred twenty-eight million, three hundred eighteen thousand, seven hundred forty-five".