52756020 has 72 divisors (see below), whose sum is σ = 166997376. Its totient is φ = 13455552.

The previous prime is 52756013. The next prime is 52756021. The reversal of 52756020 is 2065725.

52756020 is a `hidden beast` number, since 52 + 7 + 5 + 602 + 0 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52756021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2232 + ... + 10511.

It is an arithmetic number, because the mean of its divisors is an integer number (2319408).

Almost surely, 2^52756020 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 52756020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83498688).

52756020 is an abundant number, since it is smaller than the sum of its proper divisors (114241356).

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

52756020 is a wasteful number, since it uses less digits than its factorization.

52756020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12781 (or 12776 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 52756020 is about 7263.3339452348. Note that the first 3 decimals coincide. The cubic root of 52756020 is about 375.0512996486.

The spelling of 52756020 in words is "fifty-two million, seven hundred fifty-six thousand, twenty".