54500009 has 2 divisors, whose sum is σ = 54500010. Its totient is φ = 54500008.

The previous prime is 54500003. The next prime is 54500021. The reversal of 54500009 is 90000545.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42445225 + 12054784 = 6515^2 + 3472^2 .

It is a cyclic number.

It is not a de Polignac number, because 54500009 - 2⁴ = 54499993 is a prime.

It is not a weakly prime, because it can be changed into another prime (54500003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27250004 + 27250005.

It is an arithmetic number, because the mean of its divisors is an integer number (27250005).

Almost surely, 2^54500009 is an apocalyptic number.

It is an amenable number.

54500009 is a deficient number, since it is larger than the sum of its proper divisors (1).

54500009 is an equidigital number, since it uses as much as digits as its factorization.

54500009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 54500009 is about 7382.4121396736. The cubic root of 54500009 is about 379.1393472138.

The spelling of 54500009 in words is "fifty-four million, five hundred thousand, nine".