49357865 has 4 divisors (see below), whose sum is σ = 59229444. Its totient is φ = 39486288.

The previous prime is 49357853. The next prime is 49357873. The reversal of 49357865 is 56875394.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9048064 + 40309801 = 3008^2 + 6349^2 .

It is a cyclic number.

It is not a de Polignac number, because 49357865 - 2¹² = 49353769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4935782 + ... + 4935791.

It is an arithmetic number, because the mean of its divisors is an integer number (14807361).

Almost surely, 2^49357865 is an apocalyptic number.

It is an amenable number.

49357865 is a deficient number, since it is larger than the sum of its proper divisors (9871579).

49357865 is an equidigital number, since it uses as much as digits as its factorization.

49357865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9871578.

The product of its digits is 907200, while the sum is 47.

The square root of 49357865 is about 7025.5152835931. The cubic root of 49357865 is about 366.8192528386.

The spelling of 49357865 in words is "forty-nine million, three hundred fifty-seven thousand, eight hundred sixty-five".