54237409 has 2 divisors, whose sum is σ = 54237410. Its totient is φ = 54237408.

The previous prime is 54237353. The next prime is 54237413. The reversal of 54237409 is 90473245.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41563809 + 12673600 = 6447^2 + 3560^2 .

It is a cyclic number.

It is not a de Polignac number, because 54237409 - 2²³ = 45848801 is a prime.

It is not a weakly prime, because it can be changed into another prime (54237499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27118704 + 27118705.

It is an arithmetic number, because the mean of its divisors is an integer number (27118705).

Almost surely, 2^54237409 is an apocalyptic number.

It is an amenable number.

54237409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54237409 is an equidigital number, since it uses as much as digits as its factorization.

54237409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 54237409 is about 7364.6051489540. The cubic root of 54237409 is about 378.5294248062.

The spelling of 54237409 in words is "fifty-four million, two hundred thirty-seven thousand, four hundred nine".