49665589 has 2 divisors, whose sum is σ = 49665590. Its totient is φ = 49665588.

The previous prime is 49665571. The next prime is 49665599. The reversal of 49665589 is 98556694.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49463089 + 202500 = 7033^2 + 450^2 .

It is a cyclic number.

It is not a de Polignac number, because 49665589 - 2⁷ = 49665461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49665599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24832794 + 24832795.

It is an arithmetic number, because the mean of its divisors is an integer number (24832795).

Almost surely, 2^49665589 is an apocalyptic number.

It is an amenable number.

49665589 is a deficient number, since it is larger than the sum of its proper divisors (1).

49665589 is an equidigital number, since it uses as much as digits as its factorization.

49665589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2332800, while the sum is 52.

The square root of 49665589 is about 7047.3817123808. The cubic root of 49665589 is about 367.5799915343.

The spelling of 49665589 in words is "forty-nine million, six hundred sixty-five thousand, five hundred eighty-nine".