53215612 has 12 divisors (see below), whose sum is σ = 93183496. Its totient is φ = 26591760.

The previous prime is 53215597. The next prime is 53215649. The reversal of 53215612 is 21651235.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 6523 + ... + 12205.

Almost surely, 2^53215612 is an apocalyptic number.

It is an amenable number.

53215612 is a deficient number, since it is larger than the sum of its proper divisors (39967884).

53215612 is a wasteful number, since it uses less digits than its factorization.

53215612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8028 (or 8026 counting only the distinct ones).

The product of its digits is 1800, while the sum is 25.

The square root of 53215612 is about 7294.9031522015. The cubic root of 53215612 is about 376.1372574938.

Adding to 53215612 its reverse (21651235), we get a palindrome (74866847).

The spelling of 53215612 in words is "fifty-three million, two hundred fifteen thousand, six hundred twelve".