49689583 has 2 divisors, whose sum is σ = 49689584. Its totient is φ = 49689582.

The previous prime is 49689571. The next prime is 49689599. The reversal of 49689583 is 38598694.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49689583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49689583.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49689533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24844791 + 24844792.

It is an arithmetic number, because the mean of its divisors is an integer number (24844792).

Almost surely, 2^49689583 is an apocalyptic number.

49689583 is a deficient number, since it is larger than the sum of its proper divisors (1).

49689583 is an equidigital number, since it uses as much as digits as its factorization.

49689583 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1866240, while the sum is 52.

The square root of 49689583 is about 7049.0838411811. The cubic root of 49689583 is about 367.6391760024.

The spelling of 49689583 in words is "forty-nine million, six hundred eighty-nine thousand, five hundred eighty-three".