56251661783 has 8 divisors (see below), whose sum is σ = 58153244688. Its totient is φ = 54377051904.

The previous prime is 56251661779. The next prime is 56251661789. The reversal of 56251661783 is 38716615265.

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 56251661783 - 2² = 56251661779 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 (56251661789) 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, 6739016 + ... + 6747357.

It is an arithmetic number, because the mean of its divisors is an integer number (7269155586).

Almost surely, 2^56251661783 is an apocalyptic number.

56251661783 is a deficient number, since it is larger than the sum of its proper divisors (1901582905).

56251661783 is a wasteful number, since it uses less digits than its factorization.

56251661783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13486513.

The product of its digits is 1814400, while the sum is 50.

The spelling of 56251661783 in words is "fifty-six billion, two hundred fifty-one million, six hundred sixty-one thousand, seven hundred eighty-three".