53555791 has 2 divisors, whose sum is σ = 53555792. Its totient is φ = 53555790.

The previous prime is 53555767. The next prime is 53555819. The reversal of 53555791 is 19755535.

53555791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53555791 - 2¹¹ = 53553743 is a prime.

It is a super-3 number, since 3×53555791³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53552791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26777895 + 26777896.

It is an arithmetic number, because the mean of its divisors is an integer number (26777896).

Almost surely, 2^53555791 is an apocalyptic number.

53555791 is a deficient number, since it is larger than the sum of its proper divisors (1).

53555791 is an equidigital number, since it uses as much as digits as its factorization.

53555791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118125, while the sum is 40.

The square root of 53555791 is about 7318.1822196499. The cubic root of 53555791 is about 376.9370372845.

The spelling of 53555791 in words is "fifty-three million, five hundred fifty-five thousand, seven hundred ninety-one".