54507121 has 2 divisors, whose sum is σ = 54507122. Its totient is φ = 54507120.

The previous prime is 54507073. The next prime is 54507127. The reversal of 54507121 is 12170545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48455521 + 6051600 = 6961^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 54507121 - 2⁷ = 54506993 is a prime.

It is not a weakly prime, because it can be changed into another prime (54507127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27253560 + 27253561.

It is an arithmetic number, because the mean of its divisors is an integer number (27253561).

Almost surely, 2^54507121 is an apocalyptic number.

It is an amenable number.

54507121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54507121 is an equidigital number, since it uses as much as digits as its factorization.

54507121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1400, while the sum is 25.

The square root of 54507121 is about 7382.8938093406. The cubic root of 54507121 is about 379.1558384757.

Adding to 54507121 its reverse (12170545), we get a palindrome (66677666).

The spelling of 54507121 in words is "fifty-four million, five hundred seven thousand, one hundred twenty-one".