56084621 has 4 divisors (see below), whose sum is σ = 56101500. Its totient is φ = 56067744.

The previous prime is 56084543. The next prime is 56084627. The reversal of 56084621 is 12648065.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12648065 = 5 ⋅2529613.

It can be written as a sum of positive squares in 2 ways, for example, as 14546596 + 41538025 = 3814^2 + 6445^2 .

It is a cyclic number.

It is not a de Polignac number, because 56084621 - 2¹⁰ = 56083597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56084627) 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, 1616 + ... + 10713.

It is an arithmetic number, because the mean of its divisors is an integer number (14025375).

Almost surely, 2^56084621 is an apocalyptic number.

It is an amenable number.

56084621 is a deficient number, since it is larger than the sum of its proper divisors (16879).

56084621 is a wasteful number, since it uses less digits than its factorization.

56084621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16878.

The product of its (nonzero) digits is 11520, while the sum is 32.

The square root of 56084621 is about 7488.9666176316. The cubic root of 56084621 is about 382.7788468909.

The spelling of 56084621 in words is "fifty-six million, eighty-four thousand, six hundred twenty-one".