53043619009 has 2 divisors, whose sum is σ = 53043619010. Its totient is φ = 53043619008.

The previous prime is 53043618989. The next prime is 53043619039. The reversal of 53043619009 is 90091634035.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32273044609 + 20770574400 = 179647^2 + 144120^2 .

It is a cyclic number.

It is not a de Polignac number, because 53043619009 - 2¹⁵ = 53043586241 is a prime.

It is a super-2 number, since 2×53043619009² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53043619039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26521809504 + 26521809505.

It is an arithmetic number, because the mean of its divisors is an integer number (26521809505).

Almost surely, 2^53043619009 is an apocalyptic number.

It is an amenable number.

53043619009 is a deficient number, since it is larger than the sum of its proper divisors (1).

53043619009 is an equidigital number, since it uses as much as digits as its factorization.

53043619009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The spelling of 53043619009 in words is "fifty-three billion, forty-three million, six hundred nineteen thousand, nine".