252688039 has 2 divisors, whose sum is σ = 252688040. Its totient is φ = 252688038.

The previous prime is 252688003. The next prime is 252688061. The reversal of 252688039 is 930886252.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252688039 is a prime.

It is a super-3 number, since 3×252688039³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252687986 and 252688004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252688439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126344019 + 126344020.

It is an arithmetic number, because the mean of its divisors is an integer number (126344020).

Almost surely, 2^252688039 is an apocalyptic number.

252688039 is a deficient number, since it is larger than the sum of its proper divisors (1).

252688039 is an equidigital number, since it uses as much as digits as its factorization.

252688039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 207360, while the sum is 43.

The square root of 252688039 is about 15896.1642857640. The cubic root of 252688039 is about 632.2102921076.

The spelling of 252688039 in words is "two hundred fifty-two million, six hundred eighty-eight thousand, thirty-nine".