52747128 has 72 divisors (see below), whose sum is σ = 166191480. Its totient is φ = 15069600.

The previous prime is 52747069. The next prime is 52747129. The reversal of 52747128 is 82174725.

52747128 is a `hidden beast` number, since 527 + 4 + 7 + 128 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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 = 52747092 and 52747101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52747129) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3948 + ... + 11003.

It is an arithmetic number, because the mean of its divisors is an integer number (2308215).

Almost surely, 2^52747128 is an apocalyptic number.

It is an amenable number.

52747128 is an abundant number, since it is smaller than the sum of its proper divisors (113444352).

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

52747128 is a wasteful number, since it uses less digits than its factorization.

52747128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14977 (or 14963 counting only the distinct ones).

The product of its digits is 31360, while the sum is 36.

The square root of 52747128 is about 7262.7218038419. The cubic root of 52747128 is about 375.0302268968.

The spelling of 52747128 in words is "fifty-two million, seven hundred forty-seven thousand, one hundred twenty-eight".