56216541 has 4 divisors (see below), whose sum is σ = 74955392. Its totient is φ = 37477692.

The previous prime is 56216539. The next prime is 56216549. The reversal of 56216541 is 14561265.

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 not a de Polignac number, because 56216541 - 2¹ = 56216539 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56216499 and 56216508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56216549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9369421 + ... + 9369426.

It is an arithmetic number, because the mean of its divisors is an integer number (18738848).

Almost surely, 2^56216541 is an apocalyptic number.

It is an amenable number.

56216541 is a deficient number, since it is larger than the sum of its proper divisors (18738851).

56216541 is a wasteful number, since it uses less digits than its factorization.

56216541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18738850.

The product of its digits is 7200, while the sum is 30.

The square root of 56216541 is about 7497.7690681962. The cubic root of 56216541 is about 383.0787309145.

The spelling of 56216541 in words is "fifty-six million, two hundred sixteen thousand, five hundred forty-one".