52081224 has 64 divisors (see below), whose sum is σ = 142060800. Its totient is φ = 15814656.

The previous prime is 52081201. The next prime is 52081231. The reversal of 52081224 is 42218025.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 52081194 and 52081203.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23592 + ... + 25704.

It is an arithmetic number, because the mean of its divisors is an integer number (2219700).

Almost surely, 2^52081224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52081224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71030400).

52081224 is an abundant number, since it is smaller than the sum of its proper divisors (89979576).

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

52081224 is a wasteful number, since it uses less digits than its factorization.

52081224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214 (or 2210 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 52081224 is about 7216.7322244905. The cubic root of 52081224 is about 373.4453539976.

Adding to 52081224 its reverse (42218025), we get a palindrome (94299249).

The spelling of 52081224 in words is "fifty-two million, eighty-one thousand, two hundred twenty-four".