56727121733 has 4 divisors (see below), whose sum is σ = 56728694208. Its totient is φ = 56725549260.

The previous prime is 56727121723. The next prime is 56727121741. The reversal of 56727121733 is 33712172765.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33712172765 = 5 ⋅6742434553.

It is a cyclic number.

It is not a de Polignac number, because 56727121733 - 2⁶ = 56727121669 is a prime.

It is a super-2 number, since 2×56727121733² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56727121723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730823 + ... + 804708.

It is an arithmetic number, because the mean of its divisors is an integer number (14182173552).

Almost surely, 2^56727121733 is an apocalyptic number.

It is an amenable number.

56727121733 is a deficient number, since it is larger than the sum of its proper divisors (1572475).

56727121733 is a wasteful number, since it uses less digits than its factorization.

56727121733 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572474.

The product of its digits is 370440, while the sum is 44.

The spelling of 56727121733 in words is "fifty-six billion, seven hundred twenty-seven million, one hundred twenty-one thousand, seven hundred thirty-three".