55993157786459 has 4 divisors (see below), whose sum is σ = 56667774145416. Its totient is φ = 55318541427504.

The previous prime is 55993157786413. The next prime is 55993157786471. The reversal of 55993157786459 is 95468775139955.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 55993157786459 - 2⁴⁰ = 54893646158683 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (83), and also a Moran number because the ratio is a prime number: 674616358873 = 55993157786459 / (5 + 5 + 9 + 9 + 3 + 1 + 5 + 7 + 7 + 8 + 6 + 4 + 5 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55993157786959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337308179354 + ... + 337308179519.

It is an arithmetic number, because the mean of its divisors is an integer number (14166943536354).

Almost surely, 2^{55993157786459} is an apocalyptic number.

55993157786459 is a deficient number, since it is larger than the sum of its proper divisors (674616358957).

55993157786459 is an equidigital number, since it uses as much as digits as its factorization.

55993157786459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 674616358956.

The product of its digits is 12859560000, while the sum is 83.

The spelling of 55993157786459 in words is "fifty-five trillion, nine hundred ninety-three billion, one hundred fifty-seven million, seven hundred eighty-six thousand, four hundred fifty-nine".