47321725 has 12 divisors (see below), whose sum is σ = 64013760. Its totient is φ = 34415600.

The previous prime is 47321699. The next prime is 47321731. The reversal of 47321725 is 52712374.

47321725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-47321725 is a prime.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 85765 + ... + 86314.

It is an arithmetic number, because the mean of its divisors is an integer number (5334480).

Almost surely, 2^47321725 is an apocalyptic number.

It is an amenable number.

47321725 is a deficient number, since it is larger than the sum of its proper divisors (16692035).

47321725 is a wasteful number, since it uses less digits than its factorization.

47321725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172100 (or 172095 counting only the distinct ones).

The product of its digits is 11760, while the sum is 31.

The square root of 47321725 is about 6879.0787900707. The cubic root of 47321725 is about 361.7041756657.

The spelling of 47321725 in words is "forty-seven million, three hundred twenty-one thousand, seven hundred twenty-five".