47551328 has 24 divisors (see below), whose sum is σ = 102128040. Its totient is φ = 21614080.

The previous prime is 47551321. The next prime is 47551331. The reversal of 47551328 is 82315574.

It is a happy number.

It is a super-2 number, since 2×47551328² = 4522257589127168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47551321) 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, 67193 + ... + 67896.

It is an arithmetic number, because the mean of its divisors is an integer number (4255335).

Almost surely, 2^47551328 is an apocalyptic number.

It is an amenable number.

47551328 is an abundant number, since it is smaller than the sum of its proper divisors (54576712).

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

47551328 is a wasteful number, since it uses less digits than its factorization.

47551328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135110 (or 135102 counting only the distinct ones).

The product of its digits is 33600, while the sum is 35.

The square root of 47551328 is about 6895.7470951304. The cubic root of 47551328 is about 362.2882231902.

The spelling of 47551328 in words is "forty-seven million, five hundred fifty-one thousand, three hundred twenty-eight".