56155923445 has 8 divisors (see below), whose sum is σ = 67453636536. Its totient is φ = 44880386496.

The previous prime is 56155923433. The next prime is 56155923479. The reversal of 56155923445 is 54432955165.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3045494596 + 53110428849 = 55186^2 + 230457^2 .

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 56155923445 - 2⁵ = 56155923413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5538462 + ... + 5548591.

It is an arithmetic number, because the mean of its divisors is an integer number (8431704567).

Almost surely, 2^56155923445 is an apocalyptic number.

It is an amenable number.

56155923445 is a deficient number, since it is larger than the sum of its proper divisors (11297713091).

56155923445 is a wasteful number, since it uses less digits than its factorization.

56155923445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11088071.

The product of its digits is 3240000, while the sum is 49.

The spelling of 56155923445 in words is "fifty-six billion, one hundred fifty-five million, nine hundred twenty-three thousand, four hundred forty-five".