55505373963 has 16 divisors (see below), whose sum is σ = 79777236000. Its totient is φ = 34124062464.

The previous prime is 55505373961. The next prime is 55505374027. The reversal of 55505373963 is 36937350555.

It is a happy number.

It is not a de Polignac number, because 55505373963 - 2¹ = 55505373961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55505373961) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 648588 + ... + 729161.

It is an arithmetic number, because the mean of its divisors is an integer number (4986077250).

Almost surely, 2^55505373963 is an apocalyptic number.

55505373963 is a deficient number, since it is larger than the sum of its proper divisors (24271862037).

55505373963 is a wasteful number, since it uses less digits than its factorization.

55505373963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378798.

The product of its (nonzero) digits is 6378750, while the sum is 51.

The spelling of 55505373963 in words is "fifty-five billion, five hundred five million, three hundred seventy-three thousand, nine hundred sixty-three".