49447569 has 16 divisors (see below), whose sum is σ = 67459392. Its totient is φ = 32205888.

The previous prime is 49447553. The next prime is 49447579. The reversal of 49447569 is 96574494.

It is a happy number.

It is not a de Polignac number, because 49447569 - 2⁴ = 49447553 is a prime.

It is a super-2 number, since 2×49447569² = 4890124160019522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49447529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48307 + ... + 49319.

It is an arithmetic number, because the mean of its divisors is an integer number (4216212).

Almost surely, 2^49447569 is an apocalyptic number.

It is an amenable number.

49447569 is a deficient number, since it is larger than the sum of its proper divisors (18011823).

49447569 is a wasteful number, since it uses less digits than its factorization.

49447569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376.

The product of its digits is 1088640, while the sum is 48.

The square root of 49447569 is about 7031.8965436076. The cubic root of 49447569 is about 367.0413399717.

The spelling of 49447569 in words is "forty-nine million, four hundred forty-seven thousand, five hundred sixty-nine".