53391049 has 2 divisors, whose sum is σ = 53391050. Its totient is φ = 53391048.

The previous prime is 53391017. The next prime is 53391071. The reversal of 53391049 is 94019335.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43824400 + 9566649 = 6620^2 + 3093^2 .

It is a cyclic number.

It is not a de Polignac number, because 53391049 - 2⁵ = 53391017 is a prime.

It is a super-2 number, since 2×53391049² = 5701208226640802, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53391089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26695524 + 26695525.

It is an arithmetic number, because the mean of its divisors is an integer number (26695525).

Almost surely, 2^53391049 is an apocalyptic number.

It is an amenable number.

53391049 is a deficient number, since it is larger than the sum of its proper divisors (1).

53391049 is an equidigital number, since it uses as much as digits as its factorization.

53391049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 53391049 is about 7306.9178864963. The cubic root of 53391049 is about 376.5501439068.

The spelling of 53391049 in words is "fifty-three million, three hundred ninety-one thousand, forty-nine".