53474009 has 2 divisors, whose sum is σ = 53474010. Its totient is φ = 53474008.

The previous prime is 53473997. The next prime is 53474017. The reversal of 53474009 is 90047435.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45225625 + 8248384 = 6725^2 + 2872^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53474009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53473009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26737004 + 26737005.

It is an arithmetic number, because the mean of its divisors is an integer number (26737005).

Almost surely, 2^53474009 is an apocalyptic number.

It is an amenable number.

53474009 is a deficient number, since it is larger than the sum of its proper divisors (1).

53474009 is an equidigital number, since it uses as much as digits as its factorization.

53474009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 53474009 is about 7312.5924951415. The cubic root of 53474009 is about 376.7450731741.

The spelling of 53474009 in words is "fifty-three million, four hundred seventy-four thousand, nine".