53749489 has 2 divisors, whose sum is σ = 53749490. Its totient is φ = 53749488.

The previous prime is 53749471. The next prime is 53749511. The reversal of 53749489 is 98494735.

53749489 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 can be written as a sum of positive squares in only one way, i.e., 39438400 + 14311089 = 6280^2 + 3783^2 .

It is a cyclic number.

It is not a de Polignac number, because 53749489 - 2¹⁷ = 53618417 is a prime.

It is a super-2 number, since 2×53749489² = 5778015135522242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (53749429) 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, 26874744 + 26874745.

It is an arithmetic number, because the mean of its divisors is an integer number (26874745).

Almost surely, 2^53749489 is an apocalyptic number.

It is an amenable number.

53749489 is a deficient number, since it is larger than the sum of its proper divisors (1).

53749489 is an equidigital number, since it uses as much as digits as its factorization.

53749489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 49.

The square root of 53749489 is about 7331.4042993140. The cubic root of 53749489 is about 377.3909197579.

The spelling of 53749489 in words is "fifty-three million, seven hundred forty-nine thousand, four hundred eighty-nine".