43252513 has 2 divisors, whose sum is σ = 43252514. Its totient is φ = 43252512.

The previous prime is 43252507. The next prime is 43252529. The reversal of 43252513 is 31525234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33443089 + 9809424 = 5783^2 + 3132^2 .

It is a cyclic number.

It is not a de Polignac number, because 43252513 - 2¹³ = 43244321 is a prime.

It is not a weakly prime, because it can be changed into another prime (43252553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21626256 + 21626257.

It is an arithmetic number, because the mean of its divisors is an integer number (21626257).

Almost surely, 2^43252513 is an apocalyptic number.

It is an amenable number.

43252513 is a deficient number, since it is larger than the sum of its proper divisors (1).

43252513 is an equidigital number, since it uses as much as digits as its factorization.

43252513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3600, while the sum is 25.

The square root of 43252513 is about 6576.6642760597. The cubic root of 43252513 is about 351.0242459638.

Adding to 43252513 its reverse (31525234), we get a palindrome (74777747).

The spelling of 43252513 in words is "forty-three million, two hundred fifty-two thousand, five hundred thirteen".