53806660 has 48 divisors (see below), whose sum is σ = 120185856. Its totient is φ = 20189312.

The previous prime is 53806609. The next prime is 53806661. The reversal of 53806660 is 6660835.

It is not an unprimeable number, because it can be changed into a prime (53806661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23277 + ... + 25483.

It is an arithmetic number, because the mean of its divisors is an integer number (2503872).

Almost surely, 2^53806660 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 53806660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (60092928).

53806660 is an abundant number, since it is smaller than the sum of its proper divisors (66379196).

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

53806660 is a wasteful number, since it uses less digits than its factorization.

53806660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292 (or 2290 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 53806660 is about 7335.3023114252. The cubic root of 53806660 is about 377.5246771290.

The spelling of 53806660 in words is "fifty-three million, eight hundred six thousand, six hundred sixty".