56054861 has 2 divisors, whose sum is σ = 56054862. Its totient is φ = 56054860.

The previous prime is 56054837. The next prime is 56054863. The reversal of 56054861 is 16845065.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30360100 + 25694761 = 5510^2 + 5069^2 .

It is a cyclic number.

It is not a de Polignac number, because 56054861 - 2¹⁸ = 55792717 is a prime.

Together with 56054863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (56054863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28027430 + 28027431.

It is an arithmetic number, because the mean of its divisors is an integer number (28027431).

Almost surely, 2^56054861 is an apocalyptic number.

It is an amenable number.

56054861 is a deficient number, since it is larger than the sum of its proper divisors (1).

56054861 is an equidigital number, since it uses as much as digits as its factorization.

56054861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 56054861 is about 7486.9794309855. The cubic root of 56054861 is about 382.7111306807.

The spelling of 56054861 in words is "fifty-six million, fifty-four thousand, eight hundred sixty-one".