52660493 has 2 divisors, whose sum is σ = 52660494. Its totient is φ = 52660492.

The previous prime is 52660483. The next prime is 52660519. The reversal of 52660493 is 39406625.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31158724 + 21501769 = 5582^2 + 4637^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52660493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52660403) 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, 26330246 + 26330247.

It is an arithmetic number, because the mean of its divisors is an integer number (26330247).

Almost surely, 2^52660493 is an apocalyptic number.

It is an amenable number.

52660493 is a deficient number, since it is larger than the sum of its proper divisors (1).

52660493 is an equidigital number, since it uses as much as digits as its factorization.

52660493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 52660493 is about 7256.7549910411. The cubic root of 52660493 is about 374.8247904467.

The spelling of 52660493 in words is "fifty-two million, six hundred sixty thousand, four hundred ninety-three".