52661760 has 80 divisors (see below), whose sum is σ = 168377616. Its totient is φ = 14041088.

The previous prime is 52661759. The next prime is 52661771. The reversal of 52661760 is 6716625.

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 7 ways as a sum of consecutive naturals, for example, 4252 + ... + 11108.

Almost surely, 2^52661760 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 52661760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84188808).

52661760 is an abundant number, since it is smaller than the sum of its proper divisors (115715856).

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

52661760 is an equidigital number, since it uses as much as digits as its factorization.

52661760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6883 (or 6867 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 33.

The square root of 52661760 is about 7256.8422884888. The cubic root of 52661760 is about 374.8277964902.

The spelling of 52661760 in words is "fifty-two million, six hundred sixty-one thousand, seven hundred sixty".