53781059 has 2 divisors, whose sum is σ = 53781060. Its totient is φ = 53781058.

The previous prime is 53781043. The next prime is 53781083. The reversal of 53781059 is 95018735.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 53781059 - 2⁴ = 53781043 is a prime.

It is a super-2 number, since 2×53781059² = 5784804614322962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53780059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26890529 + 26890530.

It is an arithmetic number, because the mean of its divisors is an integer number (26890530).

Almost surely, 2^53781059 is an apocalyptic number.

53781059 is a deficient number, since it is larger than the sum of its proper divisors (1).

53781059 is an equidigital number, since it uses as much as digits as its factorization.

53781059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 38.

The square root of 53781059 is about 7333.5570496179. The cubic root of 53781059 is about 377.4647927050.

The spelling of 53781059 in words is "fifty-three million, seven hundred eighty-one thousand, fifty-nine".