252637069 has 2 divisors, whose sum is σ = 252637070. Its totient is φ = 252637068.

The previous prime is 252637031. The next prime is 252637097. The reversal of 252637069 is 960736252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227255625 + 25381444 = 15075^2 + 5038^2 .

It is a cyclic number.

It is not a de Polignac number, because 252637069 - 2¹¹ = 252635021 is a prime.

It is a super-2 number, since 2×252637069² = 127650977265821522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252634069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126318534 + 126318535.

It is an arithmetic number, because the mean of its divisors is an integer number (126318535).

Almost surely, 2^252637069 is an apocalyptic number.

It is an amenable number.

252637069 is a deficient number, since it is larger than the sum of its proper divisors (1).

252637069 is an equidigital number, since it uses as much as digits as its factorization.

252637069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 40.

The square root of 252637069 is about 15894.5609879606. The cubic root of 252637069 is about 632.1677812899.

The spelling of 252637069 in words is "two hundred fifty-two million, six hundred thirty-seven thousand, sixty-nine".