49555709 has 12 divisors (see below), whose sum is σ = 57798684. Its totient is φ = 42364224.

The previous prime is 49555703. The next prime is 49555717. The reversal of 49555709 is 90755594.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 46963609 + 2592100 = 6853^2 + 1610^2 .

It is not a de Polignac number, because 49555709 - 2¹⁶ = 49490173 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49555709.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49555703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21287 + ... + 23499.

It is an arithmetic number, because the mean of its divisors is an integer number (4816557).

Almost surely, 2^49555709 is an apocalyptic number.

49555709 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

49555709 is a deficient number, since it is larger than the sum of its proper divisors (8242975).

49555709 is a wasteful number, since it uses less digits than its factorization.

49555709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2684 (or 2677 counting only the distinct ones).

The product of its (nonzero) digits is 283500, while the sum is 44.

The square root of 49555709 is about 7039.5815926801. The cubic root of 49555709 is about 367.3087137546.

The spelling of 49555709 in words is "forty-nine million, five hundred fifty-five thousand, seven hundred nine".