52446981 has 8 divisors (see below), whose sum is σ = 70393024. Its totient is φ = 34732800.

The previous prime is 52446967. The next prime is 52446983. The reversal of 52446981 is 18964425.

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

It is not a de Polignac number, because 52446981 - 2¹⁷ = 52315909 is a prime.

It is a super-2 number, since 2×52446981² = 5501371632028722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52446983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57436 + ... + 58341.

It is an arithmetic number, because the mean of its divisors is an integer number (8799128).

Almost surely, 2^52446981 is an apocalyptic number.

It is an amenable number.

52446981 is a deficient number, since it is larger than the sum of its proper divisors (17946043).

52446981 is a wasteful number, since it uses less digits than its factorization.

52446981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115931.

The product of its digits is 69120, while the sum is 39.

The square root of 52446981 is about 7242.0287903322. The cubic root of 52446981 is about 374.3175284849.

The spelling of 52446981 in words is "fifty-two million, four hundred forty-six thousand, nine hundred eighty-one".