56105641 has 4 divisors (see below), whose sum is σ = 57164292. Its totient is φ = 55046992.

The previous prime is 56105611. The next prime is 56105663. The reversal of 56105641 is 14650165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14650165 = 5 ⋅2930033.

It can be written as a sum of positive squares in 2 ways, for example, as 13660416 + 42445225 = 3696^2 + 6515^2 .

It is a cyclic number.

It is not a de Polignac number, because 56105641 - 2¹³ = 56097449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56105611) 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, 529246 + ... + 529351.

It is an arithmetic number, because the mean of its divisors is an integer number (14291073).

Almost surely, 2^56105641 is an apocalyptic number.

It is an amenable number.

56105641 is a deficient number, since it is larger than the sum of its proper divisors (1058651).

56105641 is a wasteful number, since it uses less digits than its factorization.

56105641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058650.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 56105641 is about 7490.3698840578. The cubic root of 56105641 is about 382.8266615813.

The spelling of 56105641 in words is "fifty-six million, one hundred five thousand, six hundred forty-one".