53936388433 has 2 divisors, whose sum is σ = 53936388434. Its totient is φ = 53936388432.

The previous prime is 53936388419. The next prime is 53936388439. The reversal of 53936388433 is 33488363935.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35663567104 + 18272821329 = 188848^2 + 135177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53936388433 is a prime.

It is not a weakly prime, because it can be changed into another prime (53936388439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26968194216 + 26968194217.

It is an arithmetic number, because the mean of its divisors is an integer number (26968194217).

Almost surely, 2^53936388433 is an apocalyptic number.

It is an amenable number.

53936388433 is a deficient number, since it is larger than the sum of its proper divisors (1).

53936388433 is an equidigital number, since it uses as much as digits as its factorization.

53936388433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16796160, while the sum is 55.

The spelling of 53936388433 in words is "fifty-three billion, nine hundred thirty-six million, three hundred eighty-eight thousand, four hundred thirty-three".