53350681 has 2 divisors, whose sum is σ = 53350682. Its totient is φ = 53350680.

The previous prime is 53350673. The next prime is 53350697. The reversal of 53350681 is 18605335.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51552400 + 1798281 = 7180^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 53350681 - 2³ = 53350673 is a prime.

It is a super-2 number, since 2×53350681² = 5692590326327522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (53354681) 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, 26675340 + 26675341.

It is an arithmetic number, because the mean of its divisors is an integer number (26675341).

Almost surely, 2^53350681 is an apocalyptic number.

It is an amenable number.

53350681 is a deficient number, since it is larger than the sum of its proper divisors (1).

53350681 is an equidigital number, since it uses as much as digits as its factorization.

53350681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 53350681 is about 7304.1550503806. The cubic root of 53350681 is about 376.4552190766.

The spelling of 53350681 in words is "fifty-three million, three hundred fifty thousand, six hundred eighty-one".