55003439 has 2 divisors, whose sum is σ = 55003440. Its totient is φ = 55003438.

The previous prime is 55003409. The next prime is 55003463. The reversal of 55003439 is 93430055.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55003439 - 2⁸ = 55003183 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55003409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27501719 + 27501720.

It is an arithmetic number, because the mean of its divisors is an integer number (27501720).

Almost surely, 2^55003439 is an apocalyptic number.

55003439 is a deficient number, since it is larger than the sum of its proper divisors (1).

55003439 is an equidigital number, since it uses as much as digits as its factorization.

55003439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 55003439 is about 7416.4303408041. The cubic root of 55003439 is about 380.3031721858.

The spelling of 55003439 in words is "fifty-five million, three thousand, four hundred thirty-nine".