53992709 has 2 divisors, whose sum is σ = 53992710. Its totient is φ = 53992708.

The previous prime is 53992639. The next prime is 53992711. The reversal of 53992709 is 90729935.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39967684 + 14025025 = 6322^2 + 3745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53992709 is a prime.

Together with 53992711, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53992709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53992739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26996354 + 26996355.

It is an arithmetic number, because the mean of its divisors is an integer number (26996355).

Almost surely, 2^53992709 is an apocalyptic number.

It is an amenable number.

53992709 is a deficient number, since it is larger than the sum of its proper divisors (1).

53992709 is an equidigital number, since it uses as much as digits as its factorization.

53992709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 153090, while the sum is 44.

The square root of 53992709 is about 7347.9731218888. The cubic root of 53992709 is about 377.9593029354.

The spelling of 53992709 in words is "fifty-three million, nine hundred ninety-two thousand, seven hundred nine".