252000247 has 2 divisors, whose sum is σ = 252000248. Its totient is φ = 252000246.

The previous prime is 252000241. The next prime is 252000257. The reversal of 252000247 is 742000252.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252000247 is a prime.

It is a super-2 number, since 2×252000247² = 127008248976122018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252000241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126000123 + 126000124.

It is an arithmetic number, because the mean of its divisors is an integer number (126000124).

Almost surely, 2^252000247 is an apocalyptic number.

252000247 is a deficient number, since it is larger than the sum of its proper divisors (1).

252000247 is an equidigital number, since it uses as much as digits as its factorization.

252000247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 252000247 is about 15874.5156461544. The cubic root of 252000247 is about 631.6361661334.

Adding to 252000247 its reverse (742000252), we get a palindrome (994000499).

The spelling of 252000247 in words is "two hundred fifty-two million, two hundred forty-seven", and thus it is an aban number.