47725071 has 4 divisors (see below), whose sum is σ = 63633432. Its totient is φ = 31816712.

The previous prime is 47725049. The next prime is 47725081. The reversal of 47725071 is 17052774.

It is a happy number.

47725071 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47725071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47725081) by changing a digit.

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, 7954176 + ... + 7954181.

It is an arithmetic number, because the mean of its divisors is an integer number (15908358).

Almost surely, 2^47725071 is an apocalyptic number.

47725071 is a deficient number, since it is larger than the sum of its proper divisors (15908361).

47725071 is a wasteful number, since it uses less digits than its factorization.

47725071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15908360.

The product of its (nonzero) digits is 13720, while the sum is 33.

The square root of 47725071 is about 6908.3334459188. Note that the first 3 decimals coincide. The cubic root of 47725071 is about 362.7289296702.

The spelling of 47725071 in words is "forty-seven million, seven hundred twenty-five thousand, seventy-one".