52638787 has 2 divisors, whose sum is σ = 52638788. Its totient is φ = 52638786.

The previous prime is 52638779. The next prime is 52638809. The reversal of 52638787 is 78783625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52638787 - 2³ = 52638779 is a prime.

It is not a weakly prime, because it can be changed into another prime (52638737) 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, 26319393 + 26319394.

It is an arithmetic number, because the mean of its divisors is an integer number (26319394).

Almost surely, 2^52638787 is an apocalyptic number.

52638787 is a deficient number, since it is larger than the sum of its proper divisors (1).

52638787 is an equidigital number, since it uses as much as digits as its factorization.

52638787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 564480, while the sum is 46.

The square root of 52638787 is about 7255.2592648368. The cubic root of 52638787 is about 374.7732839976.

The spelling of 52638787 in words is "fifty-two million, six hundred thirty-eight thousand, seven hundred eighty-seven".