53705279 has 2 divisors, whose sum is σ = 53705280. Its totient is φ = 53705278.

The previous prime is 53705251. The next prime is 53705287. The reversal of 53705279 is 97250735.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53705279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53705209) 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, 26852639 + 26852640.

It is an arithmetic number, because the mean of its divisors is an integer number (26852640).

Almost surely, 2^53705279 is an apocalyptic number.

53705279 is a deficient number, since it is larger than the sum of its proper divisors (1).

53705279 is an equidigital number, since it uses as much as digits as its factorization.

53705279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 66150, while the sum is 38.

The square root of 53705279 is about 7328.3885677549. The cubic root of 53705279 is about 377.2874209192.

The spelling of 53705279 in words is "fifty-three million, seven hundred five thousand, two hundred seventy-nine".