53188477 has 2 divisors, whose sum is σ = 53188478. Its totient is φ = 53188476.

The previous prime is 53188453. The next prime is 53188483. The reversal of 53188477 is 77488135.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35117476 + 18071001 = 5926^2 + 4251^2 .

It is a cyclic number.

It is not a de Polignac number, because 53188477 - 2¹¹ = 53186429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53128477) 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, 26594238 + 26594239.

It is an arithmetic number, because the mean of its divisors is an integer number (26594239).

Almost surely, 2^53188477 is an apocalyptic number.

It is an amenable number.

53188477 is a deficient number, since it is larger than the sum of its proper divisors (1).

53188477 is an equidigital number, since it uses as much as digits as its factorization.

53188477 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 188160, while the sum is 43.

The square root of 53188477 is about 7293.0430548571. The cubic root of 53188477 is about 376.0733149816.

The spelling of 53188477 in words is "fifty-three million, one hundred eighty-eight thousand, four hundred seventy-seven".