53021204 has 12 divisors (see below), whose sum is σ = 93038484. Its totient is φ = 26438784.

The previous prime is 53021201. The next prime is 53021219. The reversal of 53021204 is 40212035.

It can be written as a sum of positive squares in 2 ways, for example, as 36602500 + 16418704 = 6050^2 + 4052^2 .

It is a super-2 number, since 2×53021204² = 5622496147219232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53021201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16277 + ... + 19260.

It is an arithmetic number, because the mean of its divisors is an integer number (7753207).

Almost surely, 2^53021204 is an apocalyptic number.

It is an amenable number.

53021204 is a deficient number, since it is larger than the sum of its proper divisors (40017280).

53021204 is a wasteful number, since it uses less digits than its factorization.

53021204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35914 (or 35912 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 53021204 is about 7281.5660403515. The cubic root of 53021204 is about 375.6786620031.

Adding to 53021204 its reverse (40212035), we get a palindrome (93233239).

The spelling of 53021204 in words is "fifty-three million, twenty-one thousand, two hundred four".