52705147 has 4 divisors (see below), whose sum is σ = 57496536. Its totient is φ = 47913760.

The previous prime is 52705139. The next prime is 52705157. The reversal of 52705147 is 74150725.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52705147 - 2³ = 52705139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52705157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2395678 + ... + 2395699.

It is an arithmetic number, because the mean of its divisors is an integer number (14374134).

Almost surely, 2^52705147 is an apocalyptic number.

52705147 is a deficient number, since it is larger than the sum of its proper divisors (4791389).

52705147 is a wasteful number, since it uses less digits than its factorization.

52705147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4791388.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 52705147 is about 7259.8310586404. The cubic root of 52705147 is about 374.9307060112.

The spelling of 52705147 in words is "fifty-two million, seven hundred five thousand, one hundred forty-seven".