54202009 has 2 divisors, whose sum is σ = 54202010. Its totient is φ = 54202008.

The previous prime is 54201997. The next prime is 54202019. The reversal of 54202009 is 90020245.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 48608784 + 5593225 = 6972^2 + 2365^2 .

It is a cyclic number.

It is not a de Polignac number, because 54202009 - 2²⁵ = 20647577 is a prime.

It is not a weakly prime, because it can be changed into another prime (54202019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27101004 + 27101005.

It is an arithmetic number, because the mean of its divisors is an integer number (27101005).

Almost surely, 2^54202009 is an apocalyptic number.

It is an amenable number.

54202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

54202009 is an equidigital number, since it uses as much as digits as its factorization.

54202009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 54202009 is about 7362.2013691558. The cubic root of 54202009 is about 378.4470532582.

The spelling of 54202009 in words is "fifty-four million, two hundred two thousand, nine".