55381688277 has 8 divisors (see below), whose sum is σ = 75559512864. Its totient is φ = 36062494608.

The previous prime is 55381688231. The next prime is 55381688279. The reversal of 55381688277 is 77288618355.

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

It is not a de Polignac number, because 55381688277 - 2¹⁴ = 55381671893 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55381688277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55381688279) 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, 214657578 + ... + 214657835.

It is an arithmetic number, because the mean of its divisors is an integer number (9444939108).

Almost surely, 2^55381688277 is an apocalyptic number.

It is an amenable number.

55381688277 is a deficient number, since it is larger than the sum of its proper divisors (20177824587).

55381688277 is a wasteful number, since it uses less digits than its factorization.

55381688277 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429315459.

The product of its digits is 22579200, while the sum is 60.

The spelling of 55381688277 in words is "fifty-five billion, three hundred eighty-one million, six hundred eighty-eight thousand, two hundred seventy-seven".