52216424 has 16 divisors (see below), whose sum is σ = 105437220. Its totient is φ = 24099840.

The previous prime is 52216403. The next prime is 52216429. The reversal of 52216424 is 42461225.

It can be written as a sum of positive squares in 2 ways, for example, as 51984100 + 232324 = 7210^2 + 482^2 .

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 52216393 and 52216402.

It is not an unprimeable number, because it can be changed into a prime (52216429) 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, 250937 + ... + 251144.

Almost surely, 2^52216424 is an apocalyptic number.

It is an amenable number.

52216424 is an abundant number, since it is smaller than the sum of its proper divisors (53220796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52216424 is a wasteful number, since it uses less digits than its factorization.

52216424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502100 (or 502096 counting only the distinct ones).

The product of its digits is 3840, while the sum is 26.

The square root of 52216424 is about 7226.0932736853. The cubic root of 52216424 is about 373.7682226586.

Adding to 52216424 its reverse (42461225), we get a palindrome (94677649).

The spelling of 52216424 in words is "fifty-two million, two hundred sixteen thousand, four hundred twenty-four".