52657730 has 8 divisors (see below), whose sum is σ = 94783932. Its totient is φ = 21063088.

The previous prime is 52657691. The next prime is 52657751. The reversal of 52657730 is 3775625.

52657730 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 42627841 + 10029889 = 6529^2 + 3167^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2632877 + ... + 2632896.

Almost surely, 2^52657730 is an apocalyptic number.

52657730 is a deficient number, since it is larger than the sum of its proper divisors (42126202).

52657730 is a wasteful number, since it uses less digits than its factorization.

52657730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5265780.

The product of its (nonzero) digits is 44100, while the sum is 35.

The square root of 52657730 is about 7256.5646141959. The cubic root of 52657730 is about 374.8182348744.

The spelling of 52657730 in words is "fifty-two million, six hundred fifty-seven thousand, seven hundred thirty".