53201660 has 36 divisors (see below), whose sum is σ = 115745448. Its totient is φ = 20540352.

The previous prime is 53201651. The next prime is 53201677. The reversal of 53201660 is 6610235.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15239 + ... + 18401.

Almost surely, 2^53201660 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 53201660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57872724).

53201660 is an abundant number, since it is smaller than the sum of its proper divisors (62543788).

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

53201660 is a wasteful number, since it uses less digits than its factorization.

53201660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3230 (or 3199 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 53201660 is about 7293.9468053997. The cubic root of 53201660 is about 376.1043828948.

Adding to 53201660 its reverse (6610235), we get a palindrome (59811895).

The spelling of 53201660 in words is "fifty-three million, two hundred one thousand, six hundred sixty".