54445121 has 2 divisors, whose sum is σ = 54445122. Its totient is φ = 54445120.

The previous prime is 54445103. The next prime is 54445133. The reversal of 54445121 is 12154445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47886400 + 6558721 = 6920^2 + 2561^2 .

It is a cyclic number.

It is not a de Polignac number, because 54445121 - 2⁶ = 54445057 is a prime.

It is not a weakly prime, because it can be changed into another prime (54447121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27222560 + 27222561.

It is an arithmetic number, because the mean of its divisors is an integer number (27222561).

Almost surely, 2^54445121 is an apocalyptic number.

It is an amenable number.

54445121 is a deficient number, since it is larger than the sum of its proper divisors (1).

54445121 is an equidigital number, since it uses as much as digits as its factorization.

54445121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3200, while the sum is 26.

The square root of 54445121 is about 7378.6937190806. The cubic root of 54445121 is about 379.0120249687.

Adding to 54445121 its reverse (12154445), we get a palindrome (66599566).

The spelling of 54445121 in words is "fifty-four million, four hundred forty-five thousand, one hundred twenty-one".