252688061 has 2 divisors, whose sum is σ = 252688062. Its totient is φ = 252688060.

The previous prime is 252688039. The next prime is 252688067. The reversal of 252688061 is 160886252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 249039961 + 3648100 = 15781^2 + 1910^2 .

It is a cyclic number.

It is not a de Polignac number, because 252688061 - 2⁶ = 252687997 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252688067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126344030 + 126344031.

It is an arithmetic number, because the mean of its divisors is an integer number (126344031).

Almost surely, 2^252688061 is an apocalyptic number.

It is an amenable number.

252688061 is a deficient number, since it is larger than the sum of its proper divisors (1).

252688061 is an equidigital number, since it uses as much as digits as its factorization.

252688061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 252688061 is about 15896.1649777549. The cubic root of 252688061 is about 632.2103104551.

The spelling of 252688061 in words is "two hundred fifty-two million, six hundred eighty-eight thousand, sixty-one".