252659437 has 2 divisors, whose sum is σ = 252659438. Its totient is φ = 252659436.

The previous prime is 252659411. The next prime is 252659447. The reversal of 252659437 is 734956252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240064036 + 12595401 = 15494^2 + 3549^2 .

It is a cyclic number.

It is not a de Polignac number, because 252659437 - 2¹¹ = 252657389 is a prime.

It is a super-2 number, since 2×252659437² = 127673582210313938, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252659393 and 252659402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (252659447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126329718 + 126329719.

It is an arithmetic number, because the mean of its divisors is an integer number (126329719).

Almost surely, 2^252659437 is an apocalyptic number.

It is an amenable number.

252659437 is a deficient number, since it is larger than the sum of its proper divisors (1).

252659437 is an equidigital number, since it uses as much as digits as its factorization.

252659437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 43.

The square root of 252659437 is about 15895.2646093105. The cubic root of 252659437 is about 632.1864377123.

The spelling of 252659437 in words is "two hundred fifty-two million, six hundred fifty-nine thousand, four hundred thirty-seven".