52791449 has 4 divisors (see below), whose sum is σ = 52835364. Its totient is φ = 52747536.

The previous prime is 52791439. The next prime is 52791451. The reversal of 52791449 is 94419725.

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 35485849 + 17305600 = 5957^2 + 4160^2 .

It is a cyclic number.

It is not a de Polignac number, because 52791449 - 2⁴ = 52791433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52791439) by changing a digit.

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, 20102 + ... + 22575.

It is an arithmetic number, because the mean of its divisors is an integer number (13208841).

Almost surely, 2^52791449 is an apocalyptic number.

It is an amenable number.

52791449 is a deficient number, since it is larger than the sum of its proper divisors (43915).

52791449 is a wasteful number, since it uses less digits than its factorization.

52791449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43914.

The product of its digits is 90720, while the sum is 41.

The square root of 52791449 is about 7265.7724296870. The cubic root of 52791449 is about 375.1352377413.

The spelling of 52791449 in words is "fifty-two million, seven hundred ninety-one thousand, four hundred forty-nine".