52668547 has 2 divisors, whose sum is σ = 52668548. Its totient is φ = 52668546.

The previous prime is 52668487. The next prime is 52668557. The reversal of 52668547 is 74586625.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52668547 is a prime.

It is not a weakly prime, because it can be changed into another prime (52668557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26334273 + 26334274.

It is an arithmetic number, because the mean of its divisors is an integer number (26334274).

Almost surely, 2^52668547 is an apocalyptic number.

52668547 is a deficient number, since it is larger than the sum of its proper divisors (1).

52668547 is an equidigital number, since it uses as much as digits as its factorization.

52668547 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 43.

The square root of 52668547 is about 7257.3099010584. The cubic root of 52668547 is about 374.8438982876.

The spelling of 52668547 in words is "fifty-two million, six hundred sixty-eight thousand, five hundred forty-seven".