55438683455 has 8 divisors (see below), whose sum is σ = 70027810800. Its totient is φ = 42016686336.

The previous prime is 55438683439. The next prime is 55438683551.

55438683455 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 55438683455 - 2⁴ = 55438683439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55438683455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291782450 + ... + 291782639.

It is an arithmetic number, because the mean of its divisors is an integer number (8753476350).

Almost surely, 2^55438683455 is an apocalyptic number.

55438683455 is a deficient number, since it is larger than the sum of its proper divisors (14589127345).

55438683455 is a wasteful number, since it uses less digits than its factorization.

55438683455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583565113.

The product of its digits is 34560000, while the sum is 56.

The spelling of 55438683455 in words is "fifty-five billion, four hundred thirty-eight million, six hundred eighty-three thousand, four hundred fifty-five".