47275231 has 4 divisors (see below), whose sum is σ = 47588464. Its totient is φ = 46962000.

The previous prime is 47275229. The next prime is 47275243. The reversal of 47275231 is 13257274.

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 47275231 - 2¹ = 47275229 is a prime.

It is a super-2 number, since 2×47275231² = 4469894932206722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47275193 and 47275202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47275201) 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, 156390 + ... + 156691.

It is an arithmetic number, because the mean of its divisors is an integer number (11897116).

Almost surely, 2^47275231 is an apocalyptic number.

47275231 is a deficient number, since it is larger than the sum of its proper divisors (313233).

47275231 is a wasteful number, since it uses less digits than its factorization.

47275231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313232.

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

The square root of 47275231 is about 6875.6985826896. The cubic root of 47275231 is about 361.5856776989.

The spelling of 47275231 in words is "forty-seven million, two hundred seventy-five thousand, two hundred thirty-one".