49911009 has 8 divisors (see below), whose sum is σ = 66589152. Its totient is φ = 33253440.

The previous prime is 49910999. The next prime is 49911011. The reversal of 49911009 is 90011994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49911009 - 2¹⁷ = 49779937 is a prime.

It is a super-2 number, since 2×49911009² = 4982217638796162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (49911079) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1897 + ... + 10169.

It is an arithmetic number, because the mean of its divisors is an integer number (8323644).

Almost surely, 2^49911009 is an apocalyptic number.

It is an amenable number.

49911009 is a deficient number, since it is larger than the sum of its proper divisors (16678143).

49911009 is a wasteful number, since it uses less digits than its factorization.

49911009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10287.

The product of its (nonzero) digits is 2916, while the sum is 33.

The square root of 49911009 is about 7064.7723954845. The cubic root of 49911009 is about 368.1844563029.

The spelling of 49911009 in words is "forty-nine million, nine hundred eleven thousand, nine".