52705272 has 32 divisors (see below), whose sum is σ = 134830080. Its totient is φ = 17159520.

The previous prime is 52705271. The next prime is 52705277. The reversal of 52705272 is 27250725.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52705271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24504 + ... + 26567.

It is an arithmetic number, because the mean of its divisors is an integer number (4213440).

Almost surely, 2^52705272 is an apocalyptic number.

It is an amenable number.

52705272 is an abundant number, since it is smaller than the sum of its proper divisors (82124808).

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

52705272 is a wasteful number, since it uses less digits than its factorization.

52705272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51123 (or 51119 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 52705272 is about 7259.8396676511. The cubic root of 52705272 is about 374.9310024168.

Adding to 52705272 its reverse (27250725), we get a palindrome (79955997).

The spelling of 52705272 in words is "fifty-two million, seven hundred five thousand, two hundred seventy-two".