252321073 has 2 divisors, whose sum is σ = 252321074. Its totient is φ = 252321072.

The previous prime is 252321061. The next prime is 252321077. The reversal of 252321073 is 370123252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 251920384 + 400689 = 15872^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 252321073 - 2¹³ = 252312881 is a prime.

It is not a weakly prime, because it can be changed into another prime (252321077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126160536 + 126160537.

It is an arithmetic number, because the mean of its divisors is an integer number (126160537).

Almost surely, 2^252321073 is an apocalyptic number.

It is an amenable number.

252321073 is a deficient number, since it is larger than the sum of its proper divisors (1).

252321073 is an equidigital number, since it uses as much as digits as its factorization.

252321073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 252321073 is about 15884.6174961816. The cubic root of 252321073 is about 631.9041015431.

The spelling of 252321073 in words is "two hundred fifty-two million, three hundred twenty-one thousand, seventy-three".