52657147 has 2 divisors, whose sum is σ = 52657148. Its totient is φ = 52657146.

The previous prime is 52657141. The next prime is 52657169. The reversal of 52657147 is 74175625.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52657147 - 2¹⁵ = 52624379 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (52657141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26328573 + 26328574.

It is an arithmetic number, because the mean of its divisors is an integer number (26328574).

Almost surely, 2^52657147 is an apocalyptic number.

52657147 is a deficient number, since it is larger than the sum of its proper divisors (1).

52657147 is an equidigital number, since it uses as much as digits as its factorization.

52657147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58800, while the sum is 37.

The square root of 52657147 is about 7256.5244435611. The cubic root of 52657147 is about 374.8168516027.

The spelling of 52657147 in words is "fifty-two million, six hundred fifty-seven thousand, one hundred forty-seven".