49642589 has 2 divisors, whose sum is σ = 49642590. Its totient is φ = 49642588.

The previous prime is 49642583. The next prime is 49642613. The reversal of 49642589 is 98524694.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43099225 + 6543364 = 6565^2 + 2558^2 .

It is a cyclic number.

It is not a de Polignac number, because 49642589 - 2¹² = 49638493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49642583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24821294 + 24821295.

It is an arithmetic number, because the mean of its divisors is an integer number (24821295).

Almost surely, 2^49642589 is an apocalyptic number.

It is an amenable number.

49642589 is a deficient number, since it is larger than the sum of its proper divisors (1).

49642589 is an equidigital number, since it uses as much as digits as its factorization.

49642589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 47.

The square root of 49642589 is about 7045.7497117056. The cubic root of 49642589 is about 367.5232410063.

The spelling of 49642589 in words is "forty-nine million, six hundred forty-two thousand, five hundred eighty-nine".