52087993 has 2 divisors, whose sum is σ = 52087994. Its totient is φ = 52087992.

The previous prime is 52087991. The next prime is 52088039. The reversal of 52087993 is 39978025.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43718544 + 8369449 = 6612^2 + 2893^2 .

It is a cyclic number.

It is not a de Polignac number, because 52087993 - 2¹ = 52087991 is a prime.

Together with 52087991, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (52087991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26043996 + 26043997.

It is an arithmetic number, because the mean of its divisors is an integer number (26043997).

Almost surely, 2^52087993 is an apocalyptic number.

It is an amenable number.

52087993 is a deficient number, since it is larger than the sum of its proper divisors (1).

52087993 is an equidigital number, since it uses as much as digits as its factorization.

52087993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 52087993 is about 7217.2011888266. The cubic root of 52087993 is about 373.4615322022.

The spelling of 52087993 in words is "fifty-two million, eighty-seven thousand, nine hundred ninety-three".