55686327953 has 4 divisors (see below), whose sum is σ = 56630164080. Its totient is φ = 54742491828.

The previous prime is 55686327947. The next prime is 55686327989. The reversal of 55686327953 is 35972368655.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55686327953 - 2⁴ = 55686327937 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (59), and also a Moran number because the ratio is a prime number: 943836067 = 55686327953 / (5 + 5 + 6 + 8 + 6 + 3 + 2 + 7 + 9 + 5 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55686327892 and 55686327901.

It is not an unprimeable number, because it can be changed into a prime (55686377953) 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, 471917975 + ... + 471918092.

It is an arithmetic number, because the mean of its divisors is an integer number (14157541020).

Almost surely, 2^55686327953 is an apocalyptic number.

It is an amenable number.

55686327953 is a deficient number, since it is larger than the sum of its proper divisors (943836127).

55686327953 is an equidigital number, since it uses as much as digits as its factorization.

55686327953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943836126.

The product of its digits is 40824000, while the sum is 59.

The spelling of 55686327953 in words is "fifty-five billion, six hundred eighty-six million, three hundred twenty-seven thousand, nine hundred fifty-three".