53221014 has 192 divisors, whose sum is σ = 158146560. Its totient is φ = 12519360.

The previous prime is 53221013. The next prime is 53221019. The reversal of 53221014 is 41012235.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53221013) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1132339 + ... + 1132385.

It is an arithmetic number, because the mean of its divisors is an integer number (823680).

Almost surely, 2^53221014 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53221014, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79073280).

53221014 is an abundant number, since it is smaller than the sum of its proper divisors (104925546).

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

53221014 is a wasteful number, since it uses less digits than its factorization.

53221014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135 (or 132 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 53221014 is about 7295.2734013195. The cubic root of 53221014 is about 376.1499844902.

Adding to 53221014 its reverse (41012235), we get a palindrome (94233249).

It can be divided in two parts, 5322 and 1014, that added together give a palindrome (6336).

The spelling of 53221014 in words is "fifty-three million, two hundred twenty-one thousand, fourteen".