55454579 has 2 divisors, whose sum is σ = 55454580. Its totient is φ = 55454578.

The previous prime is 55454573. The next prime is 55454611. The reversal of 55454579 is 97545455.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55454579 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (55454573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27727289 + 27727290.

It is an arithmetic number, because the mean of its divisors is an integer number (27727290).

Almost surely, 2^55454579 is an apocalyptic number.

55454579 is a deficient number, since it is larger than the sum of its proper divisors (1).

55454579 is an equidigital number, since it uses as much as digits as its factorization.

55454579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630000, while the sum is 44.

The square root of 55454579 is about 7446.7831309902. The cubic root of 55454579 is about 381.3400953785.

The spelling of 55454579 in words is "fifty-five million, four hundred fifty-four thousand, five hundred seventy-nine".