47815516 has 36 divisors (see below), whose sum is σ = 98871024. Its totient is φ = 19820160.

The previous prime is 47815499. The next prime is 47815529. The reversal of 47815516 is 61551874.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26020 + ... + 27796.

Almost surely, 2^47815516 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47815516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49435512).

47815516 is an abundant number, since it is smaller than the sum of its proper divisors (51055508).

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

47815516 is a wasteful number, since it uses less digits than its factorization.

47815516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1850 (or 1817 counting only the distinct ones).

The product of its digits is 33600, while the sum is 37.

The square root of 47815516 is about 6914.8764269508. The cubic root of 47815516 is about 362.9579240239.

The spelling of 47815516 in words is "forty-seven million, eight hundred fifteen thousand, five hundred sixteen".