55003409 has 2 divisors, whose sum is σ = 55003410. Its totient is φ = 55003408.

The previous prime is 55003379. The next prime is 55003439. The reversal of 55003409 is 90430055.

It is a balanced prime because it is at equal distance from previous prime (55003379) and next prime (55003439).

It can be written as a sum of positive squares in only one way, i.e., 36966400 + 18037009 = 6080^2 + 4247^2 .

It is a cyclic number.

It is not a de Polignac number, because 55003409 - 2⁸ = 55003153 is a prime.

It is not a weakly prime, because it can be changed into another prime (55003439) 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, 27501704 + 27501705.

It is an arithmetic number, because the mean of its divisors is an integer number (27501705).

Almost surely, 2^55003409 is an apocalyptic number.

It is an amenable number.

55003409 is a deficient number, since it is larger than the sum of its proper divisors (1).

55003409 is an equidigital number, since it uses as much as digits as its factorization.

55003409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 55003409 is about 7416.4283182675. The cubic root of 55003409 is about 380.3031030441.

The spelling of 55003409 in words is "fifty-five million, three thousand, four hundred nine".