52142224 has 10 divisors (see below), whose sum is σ = 101025590. Its totient is φ = 26071104.

The previous prime is 52142197. The next prime is 52142239. The reversal of 52142224 is 42224125.

It can be written as a sum of positive squares in only one way, i.e., 51552400 + 589824 = 7180^2 + 768^2 .

It is a junction number, because it is equal to n+sod(n) for n = 52142195 and 52142204.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1629429 + ... + 1629460.

It is an arithmetic number, because the mean of its divisors is an integer number (10102559).

Almost surely, 2^52142224 is an apocalyptic number.

It is an amenable number.

52142224 is a deficient number, since it is larger than the sum of its proper divisors (48883366).

52142224 is a wasteful number, since it uses less digits than its factorization.

52142224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3258897 (or 3258891 counting only the distinct ones).

The product of its digits is 1280, while the sum is 22.

The square root of 52142224 is about 7220.9572772590. The cubic root of 52142224 is about 373.5910960833.

Adding to 52142224 its reverse (42224125), we get a palindrome (94366349).

The spelling of 52142224 in words is "fifty-two million, one hundred forty-two thousand, two hundred twenty-four".