43253536061 has 2 divisors, whose sum is σ = 43253536062. Its totient is φ = 43253536060.

The previous prime is 43253536037. The next prime is 43253536087. The reversal of 43253536061 is 16063535234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32143111225 + 11110424836 = 179285^2 + 105406^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43253536061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43253536031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21626768030 + 21626768031.

It is an arithmetic number, because the mean of its divisors is an integer number (21626768031).

Almost surely, 2^43253536061 is an apocalyptic number.

It is an amenable number.

43253536061 is a deficient number, since it is larger than the sum of its proper divisors (1).

43253536061 is an equidigital number, since it uses as much as digits as its factorization.

43253536061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 38.

The spelling of 43253536061 in words is "forty-three billion, two hundred fifty-three million, five hundred thirty-six thousand, sixty-one".