54750209 has 2 divisors, whose sum is σ = 54750210. Its totient is φ = 54750208.

The previous prime is 54750197. The next prime is 54750259. The reversal of 54750209 is 90205745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53699584 + 1050625 = 7328^2 + 1025^2 .

It is a cyclic number.

It is not a de Polignac number, because 54750209 - 2⁸ = 54749953 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54750259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27375104 + 27375105.

It is an arithmetic number, because the mean of its divisors is an integer number (27375105).

Almost surely, 2^54750209 is an apocalyptic number.

It is an amenable number.

54750209 is a deficient number, since it is larger than the sum of its proper divisors (1).

54750209 is an equidigital number, since it uses as much as digits as its factorization.

54750209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 54750209 is about 7399.3384163721. The cubic root of 54750209 is about 379.7186490807.

The spelling of 54750209 in words is "fifty-four million, seven hundred fifty thousand, two hundred nine".