54828121 has 2 divisors, whose sum is σ = 54828122. Its totient is φ = 54828120.

The previous prime is 54828089. The next prime is 54828143. The reversal of 54828121 is 12182845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54760000 + 68121 = 7400^2 + 261^2 .

It is a cyclic number.

It is not a de Polignac number, because 54828121 - 2⁵ = 54828089 is a prime.

It is a super-2 number, since 2×54828121² = 6012245704781282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (54828161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27414060 + 27414061.

It is an arithmetic number, because the mean of its divisors is an integer number (27414061).

Almost surely, 2^54828121 is an apocalyptic number.

It is an amenable number.

54828121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54828121 is an equidigital number, since it uses as much as digits as its factorization.

54828121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5120, while the sum is 31.

The square root of 54828121 is about 7404.6013397076. The cubic root of 54828121 is about 379.8986825916.

The spelling of 54828121 in words is "fifty-four million, eight hundred twenty-eight thousand, one hundred twenty-one".