49129569 has 24 divisors (see below), whose sum is σ = 72963072. Its totient is φ = 31842720.

The previous prime is 49129529. The next prime is 49129601. The reversal of 49129569 is 96592194.

49129569 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 49129569 - 2⁷ = 49129441 is a prime.

It is a super-2 number, since 2×49129569² = 4827429100251522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49129529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60174 + ... + 60984.

It is an arithmetic number, because the mean of its divisors is an integer number (3040128).

Almost surely, 2^49129569 is an apocalyptic number.

It is an amenable number.

49129569 is a deficient number, since it is larger than the sum of its proper divisors (23833503).

49129569 is a wasteful number, since it uses less digits than its factorization.

49129569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997 (or 994 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 49129569 is about 7009.2488185254. The cubic root of 49129569 is about 366.2528262973.

The spelling of 49129569 in words is "forty-nine million, one hundred twenty-nine thousand, five hundred sixty-nine".