49507817 has 4 divisors (see below), whose sum is σ = 49756800. Its totient is φ = 49258836.

The previous prime is 49507811. The next prime is 49507819. The reversal of 49507817 is 71870594.

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 a cyclic number.

It is not a de Polignac number, because 49507817 - 2¹⁸ = 49245673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49507811) 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 3 ways as a sum of consecutive naturals, for example, 124193 + ... + 124590.

It is an arithmetic number, because the mean of its divisors is an integer number (12439200).

Almost surely, 2^49507817 is an apocalyptic number.

It is an amenable number.

49507817 is a deficient number, since it is larger than the sum of its proper divisors (248983).

49507817 is a wasteful number, since it uses less digits than its factorization.

49507817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248982.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 49507817 is about 7036.1791478046. The cubic root of 49507817 is about 367.1903498689.

The spelling of 49507817 in words is "forty-nine million, five hundred seven thousand, eight hundred seventeen".