55434559 has 2 divisors, whose sum is σ = 55434560. Its totient is φ = 55434558.

The previous prime is 55434551. The next prime is 55434601. The reversal of 55434559 is 95543455.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55434559 - 2³ = 55434551 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55434551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27717279 + 27717280.

It is an arithmetic number, because the mean of its divisors is an integer number (27717280).

Almost surely, 2^55434559 is an apocalyptic number.

55434559 is a deficient number, since it is larger than the sum of its proper divisors (1).

55434559 is an equidigital number, since it uses as much as digits as its factorization.

55434559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 270000, while the sum is 40.

The square root of 55434559 is about 7445.4388050672. The cubic root of 55434559 is about 381.2941998742.

The spelling of 55434559 in words is "fifty-five million, four hundred thirty-four thousand, five hundred fifty-nine".