53343345409 has 2 divisors, whose sum is σ = 53343345410. Its totient is φ = 53343345408.

The previous prime is 53343345403. The next prime is 53343345413. The reversal of 53343345409 is 90454334335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29474022400 + 23869323009 = 171680^2 + 154497^2 .

It is a cyclic number.

It is not a de Polignac number, because 53343345409 - 2³³ = 44753410817 is a prime.

It is not a weakly prime, because it can be changed into another prime (53343345403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26671672704 + 26671672705.

It is an arithmetic number, because the mean of its divisors is an integer number (26671672705).

Almost surely, 2^53343345409 is an apocalyptic number.

It is an amenable number.

53343345409 is a deficient number, since it is larger than the sum of its proper divisors (1).

53343345409 is an equidigital number, since it uses as much as digits as its factorization.

53343345409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 43.

The spelling of 53343345409 in words is "fifty-three billion, three hundred forty-three million, three hundred forty-five thousand, four hundred nine".