252756443 has 2 divisors, whose sum is σ = 252756444. Its totient is φ = 252756442.

The previous prime is 252756421. The next prime is 252756457. The reversal of 252756443 is 344657252.

252756443 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252756443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 252756397 and 252756406.

It is not a weakly prime, because it can be changed into another prime (252756043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126378221 + 126378222.

It is an arithmetic number, because the mean of its divisors is an integer number (126378222).

Almost surely, 2^252756443 is an apocalyptic number.

252756443 is a deficient number, since it is larger than the sum of its proper divisors (1).

252756443 is an equidigital number, since it uses as much as digits as its factorization.

252756443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 38.

The square root of 252756443 is about 15898.3157284034. The cubic root of 252756443 is about 632.2673345268.

The spelling of 252756443 in words is "two hundred fifty-two million, seven hundred fifty-six thousand, four hundred forty-three".