54807409 has 2 divisors, whose sum is σ = 54807410. Its totient is φ = 54807408.

The previous prime is 54807317. The next prime is 54807427. The reversal of 54807409 is 90470845.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50410000 + 4397409 = 7100^2 + 2097^2 .

It is a cyclic number.

It is not a de Polignac number, because 54807409 - 2⁷ = 54807281 is a prime.

It is not a weakly prime, because it can be changed into another prime (54807449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27403704 + 27403705.

It is an arithmetic number, because the mean of its divisors is an integer number (27403705).

Almost surely, 2^54807409 is an apocalyptic number.

It is an amenable number.

54807409 is a deficient number, since it is larger than the sum of its proper divisors (1).

54807409 is an equidigital number, since it uses as much as digits as its factorization.

54807409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 54807409 is about 7403.2026177864. The cubic root of 54807409 is about 379.8508394266.

The spelling of 54807409 in words is "fifty-four million, eight hundred seven thousand, four hundred nine".