49478005 has 4 divisors (see below), whose sum is σ = 59373612. Its totient is φ = 39582400.

The previous prime is 49477997. The next prime is 49478027. The reversal of 49478005 is 50087494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50087494 = 2 ⋅25043747.

It can be written as a sum of positive squares in 2 ways, for example, as 12341169 + 37136836 = 3513^2 + 6094^2 .

It is not a de Polignac number, because 49478005 - 2³ = 49477997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 4947796 + ... + 4947805.

It is an arithmetic number, because the mean of its divisors is an integer number (14843403).

Almost surely, 2^49478005 is an apocalyptic number.

It is an amenable number.

49478005 is a deficient number, since it is larger than the sum of its proper divisors (9895607).

49478005 is an equidigital number, since it uses as much as digits as its factorization.

49478005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9895606.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 49478005 is about 7034.0603494710. The cubic root of 49478005 is about 367.1166317011.

The spelling of 49478005 in words is "forty-nine million, four hundred seventy-eight thousand, five".