53648880 has 80 divisors (see below), whose sum is σ = 173560320. Its totient is φ = 13682944.

The previous prime is 53648849. The next prime is 53648893. The reversal of 53648880 is 8884635.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 661 + ... + 10379.

It is an arithmetic number, because the mean of its divisors is an integer number (2169504).

Almost surely, 2^53648880 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 53648880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86780160).

53648880 is an abundant number, since it is smaller than the sum of its proper divisors (119911440).

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

53648880 is a wasteful number, since it uses less digits than its factorization.

53648880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9758 (or 9752 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 42.

The square root of 53648880 is about 7324.5395759734. The cubic root of 53648880 is about 377.1553042593.

The spelling of 53648880 in words is "fifty-three million, six hundred forty-eight thousand, eight hundred eighty".