55381860726203 has 16 divisors (see below), whose sum is σ = 61950063887712. Its totient is φ = 49071616512000.

The previous prime is 55381860726109. The next prime is 55381860726217. The reversal of 55381860726203 is 30262706818355.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55381860726203 - 2³⁰ = 55380786984379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55381860726103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58971638 + ... + 59903403.

It is an arithmetic number, because the mean of its divisors is an integer number (3871878992982).

Almost surely, 2^{55381860726203} is an apocalyptic number.

55381860726203 is a deficient number, since it is larger than the sum of its proper divisors (6568203161509).

55381860726203 is a wasteful number, since it uses less digits than its factorization.

55381860726203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118876126.

The product of its (nonzero) digits is 14515200, while the sum is 56.

The spelling of 55381860726203 in words is "fifty-five trillion, three hundred eighty-one billion, eight hundred sixty million, seven hundred twenty-six thousand, two hundred three".