53185400057 has 2 divisors, whose sum is σ = 53185400058. Its totient is φ = 53185400056.

The previous prime is 53185400033. The next prime is 53185400071. The reversal of 53185400057 is 75000458135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34468150336 + 18717249721 = 185656^2 + 136811^2 .

It is a cyclic number.

It is not a de Polignac number, because 53185400057 - 2¹⁴ = 53185383673 is a prime.

It is not a weakly prime, because it can be changed into another prime (53185400087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26592700028 + 26592700029.

It is an arithmetic number, because the mean of its divisors is an integer number (26592700029).

Almost surely, 2^53185400057 is an apocalyptic number.

It is an amenable number.

53185400057 is a deficient number, since it is larger than the sum of its proper divisors (1).

53185400057 is an equidigital number, since it uses as much as digits as its factorization.

53185400057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 38.

The spelling of 53185400057 in words is "fifty-three billion, one hundred eighty-five million, four hundred thousand, fifty-seven".