53840660 has 24 divisors (see below), whose sum is σ = 113237376. Its totient is φ = 21503520.

The previous prime is 53840653. The next prime is 53840669. The reversal of 53840660 is 6604835.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53840669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14825 + ... + 18095.

It is an arithmetic number, because the mean of its divisors is an integer number (4718224).

Almost surely, 2^53840660 is an apocalyptic number.

It is an amenable number.

53840660 is an abundant number, since it is smaller than the sum of its proper divisors (59396716).

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

53840660 is a wasteful number, since it uses less digits than its factorization.

53840660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103 (or 4101 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 53840660 is about 7337.6195049893. The cubic root of 53840660 is about 377.6041786650.

The spelling of 53840660 in words is "fifty-three million, eight hundred forty thousand, six hundred sixty".