52918993 has 2 divisors, whose sum is σ = 52918994. Its totient is φ = 52918992.

The previous prime is 52918981. The next prime is 52919063. The reversal of 52918993 is 39981925.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34187409 + 18731584 = 5847^2 + 4328^2 .

It is a cyclic number.

It is not a de Polignac number, because 52918993 - 2⁵ = 52918961 is a prime.

It is not a weakly prime, because it can be changed into another prime (52918913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26459496 + 26459497.

It is an arithmetic number, because the mean of its divisors is an integer number (26459497).

Almost surely, 2^52918993 is an apocalyptic number.

It is an amenable number.

52918993 is a deficient number, since it is larger than the sum of its proper divisors (1).

52918993 is an equidigital number, since it uses as much as digits as its factorization.

52918993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 46.

The square root of 52918993 is about 7274.5441781599. The cubic root of 52918993 is about 375.4371033475.

The spelling of 52918993 in words is "fifty-two million, nine hundred eighteen thousand, nine hundred ninety-three".