252051361 has 2 divisors, whose sum is σ = 252051362. Its totient is φ = 252051360.

The previous prime is 252051347. The next prime is 252051379. The reversal of 252051361 is 163150252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222010000 + 30041361 = 14900^2 + 5481^2 .

It is a cyclic number.

It is not a de Polignac number, because 252051361 - 2²³ = 243662753 is a prime.

It is not a weakly prime, because it can be changed into another prime (252051311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126025680 + 126025681.

It is an arithmetic number, because the mean of its divisors is an integer number (126025681).

Almost surely, 2^252051361 is an apocalyptic number.

It is an amenable number.

252051361 is a deficient number, since it is larger than the sum of its proper divisors (1).

252051361 is an equidigital number, since it uses as much as digits as its factorization.

252051361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 252051361 is about 15876.1255034092. The cubic root of 252051361 is about 631.6788688275.

The spelling of 252051361 in words is "two hundred fifty-two million, fifty-one thousand, three hundred sixty-one".