55138199320801 has 8 divisors (see below), whose sum is σ = 55935603247104. Its totient is φ = 54341373438240.

The previous prime is 55138199320759. The next prime is 55138199320807. The reversal of 55138199320801 is 10802399183155.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55138199320801 - 2¹¹ = 55138199318753 is a prime.

It is a super-2 number, since 2×55138199320801² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55138199320807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144318780 + ... + 144700333.

It is an arithmetic number, because the mean of its divisors is an integer number (6991950405888).

Almost surely, 2^{55138199320801} is an apocalyptic number.

It is an amenable number.

55138199320801 is a deficient number, since it is larger than the sum of its proper divisors (797403926303).

55138199320801 is a wasteful number, since it uses less digits than its factorization.

55138199320801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289021871.

The product of its (nonzero) digits is 2332800, while the sum is 55.

The spelling of 55138199320801 in words is "fifty-five trillion, one hundred thirty-eight billion, one hundred ninety-nine million, three hundred twenty thousand, eight hundred one".