49665549 has 4 divisors (see below), whose sum is σ = 66220736. Its totient is φ = 33110364.

The previous prime is 49665541. The next prime is 49665571. The reversal of 49665549 is 94556694.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 49665549 - 2³ = 49665541 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49665498 and 49665507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49665541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8277589 + ... + 8277594.

It is an arithmetic number, because the mean of its divisors is an integer number (16555184).

Almost surely, 2^49665549 is an apocalyptic number.

It is an amenable number.

49665549 is a deficient number, since it is larger than the sum of its proper divisors (16555187).

49665549 is a wasteful number, since it uses less digits than its factorization.

49665549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16555186.

The product of its digits is 1166400, while the sum is 48.

The square root of 49665549 is about 7047.3788744469. The cubic root of 49665549 is about 367.5798928530.

The spelling of 49665549 in words is "forty-nine million, six hundred sixty-five thousand, five hundred forty-nine".