53185400071 has 2 divisors, whose sum is σ = 53185400072. Its totient is φ = 53185400070.

The previous prime is 53185400057. The next prime is 53185400087. The reversal of 53185400071 is 17000458135.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53185400071 - 2¹³ = 53185391879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53185400771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26592700035 + 26592700036.

It is an arithmetic number, because the mean of its divisors is an integer number (26592700036).

Almost surely, 2^53185400071 is an apocalyptic number.

53185400071 is a deficient number, since it is larger than the sum of its proper divisors (1).

53185400071 is an equidigital number, since it uses as much as digits as its factorization.

53185400071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16800, while the sum is 34.

The spelling of 53185400071 in words is "fifty-three billion, one hundred eighty-five million, four hundred thousand, seventy-one".