54821873 has 2 divisors, whose sum is σ = 54821874. Its totient is φ = 54821872.

The previous prime is 54821863. The next prime is 54821887. The reversal of 54821873 is 37812845.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 38725729 + 16096144 = 6223^2 + 4012^2 .

It is a cyclic number.

It is not a de Polignac number, because 54821873 - 2¹⁰ = 54820849 is a prime.

It is not a weakly prime, because it can be changed into another prime (54821863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27410936 + 27410937.

It is an arithmetic number, because the mean of its divisors is an integer number (27410937).

Almost surely, 2^54821873 is an apocalyptic number.

It is an amenable number.

54821873 is a deficient number, since it is larger than the sum of its proper divisors (1).

54821873 is an equidigital number, since it uses as much as digits as its factorization.

54821873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 38.

The square root of 54821873 is about 7404.1794278637. The cubic root of 54821873 is about 379.8842514500.

Subtracting from 54821873 its reverse (37812845), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 54821873 in words is "fifty-four million, eight hundred twenty-one thousand, eight hundred seventy-three".