56105130401 has 4 divisors (see below), whose sum is σ = 58039790100. Its totient is φ = 54170470704.

The previous prime is 56105130397. The next prime is 56105130437. The reversal of 56105130401 is 10403150165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10403150165 = 5 ⋅2080630033.

It can be written as a sum of positive squares in 2 ways, for example, as 47080320400 + 9024810001 = 216980^2 + 94999^2 .

It is a cyclic number.

It is not a de Polignac number, because 56105130401 - 2² = 56105130397 is a prime.

It is a super-3 number, since 3×56105130401³ (a number of 33 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56105130461) 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, 967329806 + ... + 967329863.

It is an arithmetic number, because the mean of its divisors is an integer number (14509947525).

Almost surely, 2^56105130401 is an apocalyptic number.

It is an amenable number.

56105130401 is a deficient number, since it is larger than the sum of its proper divisors (1934659699).

56105130401 is a wasteful number, since it uses less digits than its factorization.

56105130401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934659698.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 56105130401 its reverse (10403150165), we get a palindrome (66508280566).

The spelling of 56105130401 in words is "fifty-six billion, one hundred five million, one hundred thirty thousand, four hundred one".