53232216 has 32 divisors (see below), whose sum is σ = 134688960. Its totient is φ = 17529632.

The previous prime is 53232211. The next prime is 53232217. The reversal of 53232216 is 61223235.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53232211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11370 + ... + 15353.

It is an arithmetic number, because the mean of its divisors is an integer number (4209030).

Almost surely, 2^53232216 is an apocalyptic number.

It is an amenable number.

53232216 is an abundant number, since it is smaller than the sum of its proper divisors (81456744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53232216 is a wasteful number, since it uses less digits than its factorization.

53232216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26815 (or 26811 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 53232216 is about 7296.0411183052. The cubic root of 53232216 is about 376.1763734183.

The spelling of 53232216 in words is "fifty-three million, two hundred thirty-two thousand, two hundred sixteen".