52861680 has 80 divisors (see below), whose sum is σ = 182086560. Its totient is φ = 14095872.

The previous prime is 52861661. The next prime is 52861681. The reversal of 52861680 is 8616825.

It is a happy number.

52861680 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52861681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10077 + ... + 14396.

It is an arithmetic number, because the mean of its divisors is an integer number (2276082).

Almost surely, 2^52861680 is an apocalyptic number.

It is an amenable number.

52861680 is an abundant number, since it is smaller than the sum of its proper divisors (129224880).

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

52861680 is a wasteful number, since it uses less digits than its factorization.

52861680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24495 (or 24483 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 52861680 is about 7270.6038263682. The cubic root of 52861680 is about 375.3015175009.

The spelling of 52861680 in words is "fifty-two million, eight hundred sixty-one thousand, six hundred eighty".