47531005 has 8 divisors (see below), whose sum is σ = 57570912. Its totient is φ = 37669008.

The previous prime is 47530981. The next prime is 47531009. The reversal of 47531005 is 50013574.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47531005 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47531009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43887 + ... + 44956.

It is an arithmetic number, because the mean of its divisors is an integer number (7196364).

Almost surely, 2^47531005 is an apocalyptic number.

It is an amenable number.

47531005 is a deficient number, since it is larger than the sum of its proper divisors (10039907).

47531005 is a wasteful number, since it uses less digits than its factorization.

47531005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88955.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 47531005 is about 6894.2733482217. The cubic root of 47531005 is about 362.2366029513.

Adding to 47531005 its reverse (50013574), we get a palindrome (97544579).

The spelling of 47531005 in words is "forty-seven million, five hundred thirty-one thousand, five".