56835474181 has 4 divisors (see below), whose sum is σ = 56836188864. Its totient is φ = 56834759500.

The previous prime is 56835474169. The next prime is 56835474197. The reversal of 56835474181 is 18147453865.

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: 18147453865 = 5 ⋅3629490773.

It is a cyclic number.

It is not a de Polignac number, because 56835474181 - 2⁵ = 56835474149 is a prime.

It is a super-2 number, since 2×56835474181² (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 (56835474151) 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, 220615 + ... + 402916.

It is an arithmetic number, because the mean of its divisors is an integer number (14209047216).

Almost surely, 2^56835474181 is an apocalyptic number.

It is an amenable number.

56835474181 is a deficient number, since it is larger than the sum of its proper divisors (714683).

56835474181 is an equidigital number, since it uses as much as digits as its factorization.

56835474181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714682.

The product of its digits is 3225600, while the sum is 52.

The spelling of 56835474181 in words is "fifty-six billion, eight hundred thirty-five million, four hundred seventy-four thousand, one hundred eighty-one".