53643360 has 192 divisors, whose sum is σ = 182020608. Its totient is φ = 13246464.

The previous prime is 53643341. The next prime is 53643371. The reversal of 53643360 is 6334635.

It is a super-2 number, since 2×53643360² = 5755220144179200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 474664 + ... + 474776.

It is an arithmetic number, because the mean of its divisors is an integer number (948024).

Almost surely, 2^53643360 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53643360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91010304).

53643360 is an abundant number, since it is smaller than the sum of its proper divisors (128377248).

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

53643360 is a wasteful number, since it uses less digits than its factorization.

53643360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 189 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 30.

The square root of 53643360 is about 7324.1627507859. The cubic root of 53643360 is about 377.1423684895.

Adding to 53643360 its reverse (6334635), we get a palindrome (59977995).

The spelling of 53643360 in words is "fifty-three million, six hundred forty-three thousand, three hundred sixty".