47815275 has 48 divisors (see below), whose sum is σ = 84208896. Its totient is φ = 23886720.

The previous prime is 47815253. The next prime is 47815279. The reversal of 47815275 is 57251874.

It is not a de Polignac number, because 47815275 - 2²² = 43620971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47815279) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91164 + ... + 91686.

It is an arithmetic number, because the mean of its divisors is an integer number (1754352).

Almost surely, 2^47815275 is an apocalyptic number.

47815275 is a deficient number, since it is larger than the sum of its proper divisors (36393621).

47815275 is a wasteful number, since it uses less digits than its factorization.

47815275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612 (or 607 counting only the distinct ones).

The product of its digits is 78400, while the sum is 39.

The square root of 47815275 is about 6914.8590007317. The cubic root of 47815275 is about 362.9573142288.

It can be divided in two parts, 478 and 15275, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 47815275 in words is "forty-seven million, eight hundred fifteen thousand, two hundred seventy-five".