53205560 has 32 divisors (see below), whose sum is σ = 120098160. Its totient is φ = 21213696.

The previous prime is 53205557. The next prime is 53205589. The reversal of 53205560 is 6550235.

It is a super-2 number, since 2×53205560² = 5661663229827200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11507 + ... + 15453.

Almost surely, 2^53205560 is an apocalyptic number.

It is an amenable number.

53205560 is an abundant number, since it is smaller than the sum of its proper divisors (66892600).

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

53205560 is a wasteful number, since it uses less digits than its factorization.

53205560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295 (or 4291 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 53205560 is about 7294.2141454717. The cubic root of 53205560 is about 376.1135729041.

Adding to 53205560 its reverse (6550235), we get a palindrome (59755795).

The spelling of 53205560 in words is "fifty-three million, two hundred five thousand, five hundred sixty".