56111201 has 4 divisors (see below), whose sum is σ = 58046100. Its totient is φ = 54176304.

The previous prime is 56111189. The next prime is 56111213. The reversal of 56111201 is 10211165.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10211165 = 5 ⋅2042233.

It is an interprime number because it is at equal distance from previous prime (56111189) and next prime (56111213).

It can be written as a sum of positive squares in 2 ways, for example, as 26419600 + 29691601 = 5140^2 + 5449^2 .

It is a cyclic number.

It is not a de Polignac number, because 56111201 - 2¹⁴ = 56094817 is a prime.

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 56111201.

It is not an unprimeable number, because it can be changed into a prime (56111281) 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, 967406 + ... + 967463.

It is an arithmetic number, because the mean of its divisors is an integer number (14511525).

Almost surely, 2^56111201 is an apocalyptic number.

It is an amenable number.

56111201 is a deficient number, since it is larger than the sum of its proper divisors (1934899).

56111201 is a wasteful number, since it uses less digits than its factorization.

56111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934898.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 56111201 is about 7490.7410180836. The cubic root of 56111201 is about 382.8393070474.

Adding to 56111201 its reverse (10211165), we get a palindrome (66322366).

The spelling of 56111201 in words is "fifty-six million, one hundred eleven thousand, two hundred one".