43044250553 has 2 divisors, whose sum is σ = 43044250554. Its totient is φ = 43044250552.

The previous prime is 43044250547. The next prime is 43044250649. The reversal of 43044250553 is 35505244034.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22311994384 + 20732256169 = 149372^2 + 143987^2 .

It is a cyclic number.

It is not a de Polignac number, because 43044250553 - 2¹⁰ = 43044249529 is a prime.

It is not a weakly prime, because it can be changed into another prime (43044250153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21522125276 + 21522125277.

It is an arithmetic number, because the mean of its divisors is an integer number (21522125277).

Almost surely, 2^43044250553 is an apocalyptic number.

It is an amenable number.

43044250553 is a deficient number, since it is larger than the sum of its proper divisors (1).

43044250553 is an equidigital number, since it uses as much as digits as its factorization.

43044250553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144000, while the sum is 35.

Adding to 43044250553 its reverse (35505244034), we get a palindrome (78549494587).

The spelling of 43044250553 in words is "forty-three billion, forty-four million, two hundred fifty thousand, five hundred fifty-three".