49509859 has 8 divisors (see below), whose sum is σ = 56724320. Its totient is φ = 42330816.

The previous prime is 49509833. The next prime is 49509893. The reversal of 49509859 is 95890594.

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

It is a cyclic number.

It is not a de Polignac number, because 49509859 - 2⁵ = 49509827 is a prime.

It is a super-2 number, since 2×49509859² = 4902452276399762, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49509829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5784 + ... + 11509.

It is an arithmetic number, because the mean of its divisors is an integer number (7090540).

Almost surely, 2^49509859 is an apocalyptic number.

49509859 is a deficient number, since it is larger than the sum of its proper divisors (7214461).

49509859 is a wasteful number, since it uses less digits than its factorization.

49509859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17709.

The product of its (nonzero) digits is 583200, while the sum is 49.

The square root of 49509859 is about 7036.3242534721. The cubic root of 49509859 is about 367.1953981787.

The spelling of 49509859 in words is "forty-nine million, five hundred nine thousand, eight hundred fifty-nine".