47915520 has 160 divisors (see below), whose sum is σ = 162632448. Its totient is φ = 11993088.

The previous prime is 47915507. The next prime is 47915573. The reversal of 47915520 is 2551974.

It is a tau number, because it is divible by the number of its divisors (160).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130377 + ... + 130743.

Almost surely, 2^47915520 is an apocalyptic number.

47915520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47915520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81316224).

47915520 is an abundant number, since it is smaller than the sum of its proper divisors (114716928).

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

47915520 is a wasteful number, since it uses less digits than its factorization.

47915520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410 (or 394 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 47915520 is about 6922.1037264693. The cubic root of 47915520 is about 363.2107845453.

The spelling of 47915520 in words is "forty-seven million, nine hundred fifteen thousand, five hundred twenty".