54502009 has 2 divisors, whose sum is σ = 54502010. Its totient is φ = 54502008.

The previous prime is 54501977. The next prime is 54502043. The reversal of 54502009 is 90020545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42055225 + 12446784 = 6485^2 + 3528^2 .

It is a cyclic number.

It is not a de Polignac number, because 54502009 - 2⁵ = 54501977 is a prime.

It is not a weakly prime, because it can be changed into another prime (54502109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27251004 + 27251005.

It is an arithmetic number, because the mean of its divisors is an integer number (27251005).

Almost surely, 2^54502009 is an apocalyptic number.

It is an amenable number.

54502009 is a deficient number, since it is larger than the sum of its proper divisors (1).

54502009 is an equidigital number, since it uses as much as digits as its factorization.

54502009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 54502009 is about 7382.5475955120. The cubic root of 54502009 is about 379.1439849465.

The spelling of 54502009 in words is "fifty-four million, five hundred two thousand, nine".