52688479 has 2 divisors, whose sum is σ = 52688480. Its totient is φ = 52688478.

The previous prime is 52688431. The next prime is 52688507. The reversal of 52688479 is 97488625.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52688479 - 2²¹ = 50591327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52688429) 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, 26344239 + 26344240.

It is an arithmetic number, because the mean of its divisors is an integer number (26344240).

Almost surely, 2^52688479 is an apocalyptic number.

52688479 is a deficient number, since it is larger than the sum of its proper divisors (1).

52688479 is an equidigital number, since it uses as much as digits as its factorization.

52688479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 49.

The square root of 52688479 is about 7258.6830072679. The cubic root of 52688479 is about 374.8911779052.

The spelling of 52688479 in words is "fifty-two million, six hundred eighty-eight thousand, four hundred seventy-nine".