252642769 has 2 divisors, whose sum is σ = 252642770. Its totient is φ = 252642768.

The previous prime is 252642739. The next prime is 252642821. The reversal of 252642769 is 967246252.

252642769 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., 223353025 + 29289744 = 14945^2 + 5412^2 .

It is a cyclic number.

It is not a de Polignac number, because 252642769 - 2⁵ = 252642737 is a prime.

It is a super-2 number, since 2×252642769² = 127656737455974722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (252642739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126321384 + 126321385.

It is an arithmetic number, because the mean of its divisors is an integer number (126321385).

Almost surely, 2^252642769 is an apocalyptic number.

It is an amenable number.

252642769 is a deficient number, since it is larger than the sum of its proper divisors (1).

252642769 is an equidigital number, since it uses as much as digits as its factorization.

252642769 is an evil number, because the sum of its binary digits is even.

The product of its digits is 362880, while the sum is 43.

The square root of 252642769 is about 15894.7402935688. The cubic root of 252642769 is about 632.1725355793.

The spelling of 252642769 in words is "two hundred fifty-two million, six hundred forty-two thousand, seven hundred sixty-nine".