56211101 has 4 divisors (see below), whose sum is σ = 59169600. Its totient is φ = 53252604.

The previous prime is 56211053. The next prime is 56211119. The reversal of 56211101 is 10111265.

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: 10111265 = 5 ⋅2022253.

It is a cyclic number.

It is not a de Polignac number, because 56211101 - 2⁶ = 56211037 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 56211101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56211121) 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, 1479221 + ... + 1479258.

It is an arithmetic number, because the mean of its divisors is an integer number (14792400).

Almost surely, 2^56211101 is an apocalyptic number.

It is an amenable number.

56211101 is a deficient number, since it is larger than the sum of its proper divisors (2958499).

56211101 is a wasteful number, since it uses less digits than its factorization.

56211101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2958498.

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

The square root of 56211101 is about 7497.4062848428. The cubic root of 56211101 is about 383.0663738426.

Adding to 56211101 its reverse (10111265), we get a palindrome (66322366).

The spelling of 56211101 in words is "fifty-six million, two hundred eleven thousand, one hundred one".