52747740 has 192 divisors, whose sum is σ = 178053120. Its totient is φ = 12925440.

The previous prime is 52747703. The next prime is 52747741. The reversal of 52747740 is 4774725.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 52747695 and 52747704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52747741) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 384952 + ... + 385088.

It is an arithmetic number, because the mean of its divisors is an integer number (927360).

Almost surely, 2^52747740 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 52747740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89026560).

52747740 is an abundant number, since it is smaller than the sum of its proper divisors (125305380).

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

52747740 is a wasteful number, since it uses less digits than its factorization.

52747740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 54880, while the sum is 36.

The square root of 52747740 is about 7262.7639366842. The cubic root of 52747740 is about 375.0316773241.

The spelling of 52747740 in words is "fifty-two million, seven hundred forty-seven thousand, seven hundred forty".