56442017326451 has 4 divisors (see below), whose sum is σ = 57023893793832. Its totient is φ = 55860140859072.

The previous prime is 56442017326439. The next prime is 56442017326459. The reversal of 56442017326451 is 15462371024465.

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 56442017326451 - 2¹⁰ = 56442017325427 is a prime.

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 56442017326451.

It is not an unprimeable number, because it can be changed into a prime (56442017326459) 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, 290938233545 + ... + 290938233738.

It is an arithmetic number, because the mean of its divisors is an integer number (14255973448458).

Almost surely, 2^{56442017326451} is an apocalyptic number.

56442017326451 is a deficient number, since it is larger than the sum of its proper divisors (581876467381).

56442017326451 is an equidigital number, since it uses as much as digits as its factorization.

56442017326451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581876467380.

The product of its (nonzero) digits is 4838400, while the sum is 50.

The spelling of 56442017326451 in words is "fifty-six trillion, four hundred forty-two billion, seventeen million, three hundred twenty-six thousand, four hundred fifty-one".