56085401381 has 4 divisors (see below), whose sum is σ = 56922496992. Its totient is φ = 55248305772.

The previous prime is 56085401377. The next prime is 56085401417. The reversal of 56085401381 is 18310458065.

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.

It is a cyclic number.

It is not a de Polignac number, because 56085401381 - 2² = 56085401377 is a prime.

It is a super-2 number, since 2×56085401381² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56085401311) 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, 418547705 + ... + 418547838.

It is an arithmetic number, because the mean of its divisors is an integer number (14230624248).

Almost surely, 2^56085401381 is an apocalyptic number.

It is an amenable number.

56085401381 is a deficient number, since it is larger than the sum of its proper divisors (837095611).

56085401381 is an equidigital number, since it uses as much as digits as its factorization.

56085401381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 837095610.

The product of its (nonzero) digits is 115200, while the sum is 41.

The spelling of 56085401381 in words is "fifty-six billion, eighty-five million, four hundred one thousand, three hundred eighty-one".