55819658394231 has 8 divisors (see below), whose sum is σ = 74426487864960. Its totient is φ = 37212967259832.

The previous prime is 55819658394217. The next prime is 55819658394239. The reversal of 55819658394231 is 13249385691855.

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

It is a de Polignac number, because none of the positive numbers 2^k-55819658394231 is a prime.

It is a super-2 number, since 2×55819658394231² (a number of 28 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (69) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55819658394239) 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, 33638875 + ... + 35259228.

It is an arithmetic number, because the mean of its divisors is an integer number (9303310983120).

Almost surely, 2^{55819658394231} is an apocalyptic number.

55819658394231 is a deficient number, since it is larger than the sum of its proper divisors (18606829470729).

55819658394231 is a wasteful number, since it uses less digits than its factorization.

55819658394231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69168165.

The product of its digits is 279936000, while the sum is 69.

The spelling of 55819658394231 in words is "fifty-five trillion, eight hundred nineteen billion, six hundred fifty-eight million, three hundred ninety-four thousand, two hundred thirty-one".