252023609 has 2 divisors, whose sum is σ = 252023610. Its totient is φ = 252023608.

The previous prime is 252023599. The next prime is 252023641. The reversal of 252023609 is 906320252.

252023609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188980009 + 63043600 = 13747^2 + 7940^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252023609 is a prime.

It is not a weakly prime, because it can be changed into another prime (252023689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126011804 + 126011805.

It is an arithmetic number, because the mean of its divisors is an integer number (126011805).

Almost surely, 2^252023609 is an apocalyptic number.

It is an amenable number.

252023609 is a deficient number, since it is larger than the sum of its proper divisors (1).

252023609 is an equidigital number, since it uses as much as digits as its factorization.

252023609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 252023609 is about 15875.2514625753. The cubic root of 252023609 is about 631.6556844055.

The spelling of 252023609 in words is "two hundred fifty-two million, twenty-three thousand, six hundred nine".