53550304309 has 2 divisors, whose sum is σ = 53550304310. Its totient is φ = 53550304308.

The previous prime is 53550304243. The next prime is 53550304331. The reversal of 53550304309 is 90340305535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38790484209 + 14759820100 = 196953^2 + 121490^2 .

It is a cyclic number.

It is not a de Polignac number, because 53550304309 - 2¹⁹ = 53549780021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53550304009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26775152154 + 26775152155.

It is an arithmetic number, because the mean of its divisors is an integer number (26775152155).

Almost surely, 2^53550304309 is an apocalyptic number.

It is an amenable number.

53550304309 is a deficient number, since it is larger than the sum of its proper divisors (1).

53550304309 is an equidigital number, since it uses as much as digits as its factorization.

53550304309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 121500, while the sum is 37.

The spelling of 53550304309 in words is "fifty-three billion, five hundred fifty million, three hundred four thousand, three hundred nine".