55656231051731 has 4 divisors (see below), whose sum is σ = 55656915114264. Its totient is φ = 55655546989200.

The previous prime is 55656231051661. The next prime is 55656231051739. The reversal of 55656231051731 is 13715013265655.

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 55656231051731 - 2⁴² = 51258184540627 is a prime.

It is a super-2 number, since 2×55656231051731² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55656231051731.

It is not an unprimeable number, because it can be changed into a prime (55656231051739) 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, 341909210 + ... + 342071951.

It is an arithmetic number, because the mean of its divisors is an integer number (13914228778566).

Almost surely, 2^{55656231051731} is an apocalyptic number.

55656231051731 is a deficient number, since it is larger than the sum of its proper divisors (684062533).

55656231051731 is an equidigital number, since it uses as much as digits as its factorization.

55656231051731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684062532.

The product of its (nonzero) digits is 2835000, while the sum is 50.

The spelling of 55656231051731 in words is "fifty-five trillion, six hundred fifty-six billion, two hundred thirty-one million, fifty-one thousand, seven hundred thirty-one".