53556216 has 48 divisors (see below), whose sum is σ = 155753640. Its totient is φ = 15301440.

The previous prime is 53556211. The next prime is 53556229. The reversal of 53556216 is 61265535.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53556211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21595 + ... + 23946.

Almost surely, 2^53556216 is an apocalyptic number.

53556216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53556216 is an abundant number, since it is smaller than the sum of its proper divisors (102197424).

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

53556216 is a wasteful number, since it uses less digits than its factorization.

53556216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45564 (or 45553 counting only the distinct ones).

The product of its digits is 27000, while the sum is 33.

The square root of 53556216 is about 7318.2112568578. The cubic root of 53556216 is about 376.9380343620.

The spelling of 53556216 in words is "fifty-three million, five hundred fifty-six thousand, two hundred sixteen".