5252636437 has 2 divisors, whose sum is σ = 5252636438. Its totient is φ = 5252636436.

The previous prime is 5252636407. The next prime is 5252636479. The reversal of 5252636437 is 7346362525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4995803761 + 256832676 = 70681^2 + 16026^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5252636437 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5252636393 and 5252636402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5252636407) 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, 2626318218 + 2626318219.

It is an arithmetic number, because the mean of its divisors is an integer number (2626318219).

Almost surely, 2^5252636437 is an apocalyptic number.

It is an amenable number.

5252636437 is a deficient number, since it is larger than the sum of its proper divisors (1).

5252636437 is an equidigital number, since it uses as much as digits as its factorization.

5252636437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 43.

The square root of 5252636437 is about 72475.0745912000. The cubic root of 5252636437 is about 1738.3042047177.

The spelling of 5252636437 in words is "five billion, two hundred fifty-two million, six hundred thirty-six thousand, four hundred thirty-seven".