53444216 has 32 divisors (see below), whose sum is σ = 118476000. Its totient is φ = 22114176.

The previous prime is 53444189. The next prime is 53444219. The reversal of 53444216 is 61244435.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53444219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14831 + ... + 18078.

It is an arithmetic number, because the mean of its divisors is an integer number (3702375).

Almost surely, 2^53444216 is an apocalyptic number.

53444216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

53444216 is an abundant number, since it is smaller than the sum of its proper divisors (65031784).

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

53444216 is a wasteful number, since it uses less digits than its factorization.

53444216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32951 (or 32947 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 53444216 is about 7310.5551088820. Note that the first 3 decimals coincide. The cubic root of 53444216 is about 376.6750924404.

The spelling of 53444216 in words is "fifty-three million, four hundred forty-four thousand, two hundred sixteen".