4551554009 has 2 divisors, whose sum is σ = 4551554010. Its totient is φ = 4551554008.

The previous prime is 4551553957. The next prime is 4551554011. The reversal of 4551554009 is 9004551554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4273498384 + 278055625 = 65372^2 + 16675^2 .

It is a cyclic number.

It is not a de Polignac number, because 4551554009 - 2²⁰ = 4550505433 is a prime.

Together with 4551554011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4551554099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2275777004 + 2275777005.

It is an arithmetic number, because the mean of its divisors is an integer number (2275777005).

Almost surely, 2^4551554009 is an apocalyptic number.

It is an amenable number.

4551554009 is a deficient number, since it is larger than the sum of its proper divisors (1).

4551554009 is an equidigital number, since it uses as much as digits as its factorization.

4551554009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90000, while the sum is 38.

The square root of 4551554009 is about 67465.2059138635. The cubic root of 4551554009 is about 1657.2444253920.

The spelling of 4551554009 in words is "four billion, five hundred fifty-one million, five hundred fifty-four thousand, nine".