54002609 has 2 divisors, whose sum is σ = 54002610. Its totient is φ = 54002608.

The previous prime is 54002561. The next prime is 54002621. The reversal of 54002609 is 90620045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41731600 + 12271009 = 6460^2 + 3503^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54002609 is a prime.

It is not a weakly prime, because it can be changed into another prime (54001609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27001304 + 27001305.

It is an arithmetic number, because the mean of its divisors is an integer number (27001305).

Almost surely, 2^54002609 is an apocalyptic number.

It is an amenable number.

54002609 is a deficient number, since it is larger than the sum of its proper divisors (1).

54002609 is an equidigital number, since it uses as much as digits as its factorization.

54002609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 54002609 is about 7348.6467461703. The cubic root of 54002609 is about 377.9824021556.

The spelling of 54002609 in words is "fifty-four million, two thousand, six hundred nine".