53728880 has 40 divisors (see below), whose sum is σ = 129232800. Its totient is φ = 20749568.

The previous prime is 53728879. The next prime is 53728889. The reversal of 53728880 is 8882735.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53728889) 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, 9260 + ... + 13899.

It is an arithmetic number, because the mean of its divisors is an integer number (3230820).

Almost surely, 2^53728880 is an apocalyptic number.

It is an amenable number.

53728880 is an abundant number, since it is smaller than the sum of its proper divisors (75503920).

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

53728880 is a wasteful number, since it uses less digits than its factorization.

53728880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23201 (or 23195 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 53728880 is about 7329.9986357434. The cubic root of 53728880 is about 377.3426796482.

The spelling of 53728880 in words is "fifty-three million, seven hundred twenty-eight thousand, eight hundred eighty".