53217712 has 10 divisors (see below), whose sum is σ = 103109348. Its totient is φ = 26608848.

The previous prime is 53217641. The next prime is 53217719. The reversal of 53217712 is 21771235.

It is not an unprimeable number, because it can be changed into a prime (53217719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1663038 + ... + 1663069.

Almost surely, 2^53217712 is an apocalyptic number.

It is an amenable number.

53217712 is a deficient number, since it is larger than the sum of its proper divisors (49891636).

53217712 is a wasteful number, since it uses less digits than its factorization.

53217712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3326115 (or 3326109 counting only the distinct ones).

The product of its digits is 2940, while the sum is 28.

The square root of 53217712 is about 7295.0470868940. The cubic root of 53217712 is about 376.1422051512.

Adding to 53217712 its reverse (21771235), we get a palindrome (74988947).

The spelling of 53217712 in words is "fifty-three million, two hundred seventeen thousand, seven hundred twelve".