53403212 has 6 divisors (see below), whose sum is σ = 93455628. Its totient is φ = 26701604.

The previous prime is 53403199. The next prime is 53403227. The reversal of 53403212 is 21230435.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6675398 + ... + 6675405.

It is an arithmetic number, because the mean of its divisors is an integer number (15575938).

Almost surely, 2^53403212 is an apocalyptic number.

It is an amenable number.

53403212 is a deficient number, since it is larger than the sum of its proper divisors (40052416).

53403212 is a wasteful number, since it uses less digits than its factorization.

53403212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13350807 (or 13350805 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 53403212 is about 7307.7501325647. The cubic root of 53403212 is about 376.5787356636.

Adding to 53403212 its reverse (21230435), we get a palindrome (74633647).

The spelling of 53403212 in words is "fifty-three million, four hundred three thousand, two hundred twelve".