56213681737 has 8 divisors (see below), whose sum is σ = 62108211456. Its totient is φ = 50606690112.

The previous prime is 56213681731. The next prime is 56213681749. The reversal of 56213681737 is 73718631265.

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 56213681737 - 2³ = 56213681729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56213681731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71884113 + ... + 71884894.

It is an arithmetic number, because the mean of its divisors is an integer number (7763526432).

Almost surely, 2^56213681737 is an apocalyptic number.

It is an amenable number.

56213681737 is a deficient number, since it is larger than the sum of its proper divisors (5894529719).

56213681737 is a wasteful number, since it uses less digits than its factorization.

56213681737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143769047.

The product of its digits is 1270080, while the sum is 49.

The spelling of 56213681737 in words is "fifty-six billion, two hundred thirteen million, six hundred eighty-one thousand, seven hundred thirty-seven".