43252253389 has 2 divisors, whose sum is σ = 43252253390. Its totient is φ = 43252253388.

The previous prime is 43252253329. The next prime is 43252253399. The reversal of 43252253389 is 98335225234.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31383894025 + 11868359364 = 177155^2 + 108942^2 .

It is a cyclic number.

It is not a de Polignac number, because 43252253389 - 2¹⁷ = 43252122317 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43252253329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21626126694 + 21626126695.

It is an arithmetic number, because the mean of its divisors is an integer number (21626126695).

Almost surely, 2^43252253389 is an apocalyptic number.

It is an amenable number.

43252253389 is a deficient number, since it is larger than the sum of its proper divisors (1).

43252253389 is an equidigital number, since it uses as much as digits as its factorization.

43252253389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1555200, while the sum is 46.

The spelling of 43252253389 in words is "forty-three billion, two hundred fifty-two million, two hundred fifty-three thousand, three hundred eighty-nine".