56072107171 has 4 divisors (see below), whose sum is σ = 56171702952. Its totient is φ = 55972511392.

The previous prime is 56072107151. The next prime is 56072107237. The reversal of 56072107171 is 17170127065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56072107171 - 2²⁷ = 55937889443 is a prime.

It is a super-2 number, since 2×56072107171² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56072107171.

It is not an unprimeable number, because it can be changed into a prime (56072107141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49797046 + ... + 49798171.

It is an arithmetic number, because the mean of its divisors is an integer number (14042925738).

Almost surely, 2^56072107171 is an apocalyptic number.

56072107171 is a deficient number, since it is larger than the sum of its proper divisors (99595781).

56072107171 is an equidigital number, since it uses as much as digits as its factorization.

56072107171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99595780.

The product of its (nonzero) digits is 20580, while the sum is 37.

The spelling of 56072107171 in words is "fifty-six billion, seventy-two million, one hundred seven thousand, one hundred seventy-one".