52657764 has 48 divisors (see below), whose sum is σ = 129548160. Its totient is φ = 16614400.

The previous prime is 52657751. The next prime is 52657769. The reversal of 52657764 is 46775625.

It is not an unprimeable number, because it can be changed into a prime (52657769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26932 + ... + 28820.

It is an arithmetic number, because the mean of its divisors is an integer number (2698920).

Almost surely, 2^52657764 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 52657764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64774080).

52657764 is an abundant number, since it is smaller than the sum of its proper divisors (76890396).

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

52657764 is a wasteful number, since it uses less digits than its factorization.

52657764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020 (or 2018 counting only the distinct ones).

The product of its digits is 352800, while the sum is 42.

The square root of 52657764 is about 7256.5669569019. The cubic root of 52657764 is about 374.8183155451.

The spelling of 52657764 in words is "fifty-two million, six hundred fifty-seven thousand, seven hundred sixty-four".