4557550909 has 2 divisors, whose sum is σ = 4557550910. Its totient is φ = 4557550908.

The previous prime is 4557550897. The next prime is 4557550969. The reversal of 4557550909 is 9090557554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2810060100 + 1747490809 = 53010^2 + 41803^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4557550909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4557550969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2278775454 + 2278775455.

It is an arithmetic number, because the mean of its divisors is an integer number (2278775455).

Almost surely, 2^4557550909 is an apocalyptic number.

It is an amenable number.

4557550909 is a deficient number, since it is larger than the sum of its proper divisors (1).

4557550909 is an equidigital number, since it uses as much as digits as its factorization.

4557550909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1417500, while the sum is 49.

The square root of 4557550909 is about 67509.6356752131. The cubic root of 4557550909 is about 1657.9719401059.

The spelling of 4557550909 in words is "four billion, five hundred fifty-seven million, five hundred fifty thousand, nine hundred nine".