53887680 has 448 divisors, whose sum is σ = 239938560. Its totient is φ = 11197440.

The previous prime is 53887679. The next prime is 53887733. The reversal of 53887680 is 8678835.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4898875 + ... + 4898885.

Almost surely, 2^53887680 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 53887680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119969280).

53887680 is an abundant number, since it is smaller than the sum of its proper divisors (186050880).

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

53887680 is an equidigital number, since it uses as much as digits as its factorization.

53887680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56 (or 28 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 53887680 is about 7340.8228421615. The cubic root of 53887680 is about 377.7140694824.

The spelling of 53887680 in words is "fifty-three million, eight hundred eighty-seven thousand, six hundred eighty".