49408565 has 4 divisors (see below), whose sum is σ = 59290284. Its totient is φ = 39526848.

The previous prime is 49408543. The next prime is 49408589. The reversal of 49408565 is 56580494.

It is a happy number.

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 28633201 + 20775364 = 5351^2 + 4558^2 .

It is a cyclic number.

It is not a de Polignac number, because 49408565 - 2⁸ = 49408309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4940852 + ... + 4940861.

It is an arithmetic number, because the mean of its divisors is an integer number (14822571).

Almost surely, 2^49408565 is an apocalyptic number.

It is an amenable number.

49408565 is a deficient number, since it is larger than the sum of its proper divisors (9881719).

49408565 is an equidigital number, since it uses as much as digits as its factorization.

49408565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9881718.

The product of its (nonzero) digits is 172800, while the sum is 41.

The square root of 49408565 is about 7029.1226337289. The cubic root of 49408565 is about 366.9448077827.

The spelling of 49408565 in words is "forty-nine million, four hundred eight thousand, five hundred sixty-five".