47130256 has 20 divisors (see below), whose sum is σ = 96686892. Its totient is φ = 22178816.

The previous prime is 47130229. The next prime is 47130257. The reversal of 47130256 is 65203174.

It can be written as a sum of positive squares in 2 ways, for example, as 40960000 + 6170256 = 6400^2 + 2484^2 .

It is a super-2 number, since 2×47130256² = 4442522061251072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (47130257) 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, 86365 + ... + 86908.

Almost surely, 2^47130256 is an apocalyptic number.

It is an amenable number.

47130256 is an abundant number, since it is smaller than the sum of its proper divisors (49556636).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47130256 is a wasteful number, since it uses less digits than its factorization.

47130256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173298 (or 173292 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 47130256 is about 6865.1479226598. The cubic root of 47130256 is about 361.2156843719.

The spelling of 47130256 in words is "forty-seven million, one hundred thirty thousand, two hundred fifty-six".