54056621 has 2 divisors, whose sum is σ = 54056622. Its totient is φ = 54056620.

The previous prime is 54056599. The next prime is 54056657. The reversal of 54056621 is 12665045.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51638596 + 2418025 = 7186^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 54056621 - 2⁶ = 54056557 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54056671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27028310 + 27028311.

It is an arithmetic number, because the mean of its divisors is an integer number (27028311).

Almost surely, 2^54056621 is an apocalyptic number.

It is an amenable number.

54056621 is a deficient number, since it is larger than the sum of its proper divisors (1).

54056621 is an equidigital number, since it uses as much as digits as its factorization.

54056621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 54056621 is about 7352.3207900635. The cubic root of 54056621 is about 378.1083762106.

The spelling of 54056621 in words is "fifty-four million, fifty-six thousand, six hundred twenty-one".