56442073309 has 8 divisors (see below), whose sum is σ = 57803742720. Its totient is φ = 55096146000.

The previous prime is 56442073297. The next prime is 56442073343. The reversal of 56442073309 is 90337024465.

56442073309 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 56442073309 - 2¹⁵ = 56442040541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56442073399) 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, 3928269 + ... + 3942610.

It is an arithmetic number, because the mean of its divisors is an integer number (7225467840).

Almost surely, 2^56442073309 is an apocalyptic number.

It is an amenable number.

56442073309 is a deficient number, since it is larger than the sum of its proper divisors (1361669411).

56442073309 is a wasteful number, since it uses less digits than its factorization.

56442073309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7871051.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 56442073309 in words is "fifty-six billion, four hundred forty-two million, seventy-three thousand, three hundred nine".