52120447 has 8 divisors (see below), whose sum is σ = 52902720. Its totient is φ = 51342720.

The previous prime is 52120433. The next prime is 52120451. The reversal of 52120447 is 74402125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52120447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52120427) 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 7 ways as a sum of consecutive naturals, for example, 26922 + ... + 28792.

It is an arithmetic number, because the mean of its divisors is an integer number (6612840).

Almost surely, 2^52120447 is an apocalyptic number.

52120447 is a deficient number, since it is larger than the sum of its proper divisors (782273).

52120447 is a wasteful number, since it uses less digits than its factorization.

52120447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2273.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 52120447 is about 7219.4492172187. The cubic root of 52120447 is about 373.5390792113.

The spelling of 52120447 in words is "fifty-two million, one hundred twenty thousand, four hundred forty-seven".