47939520 has 56 divisors (see below), whose sum is σ = 152211024. Its totient is φ = 12783616.

The previous prime is 47939503. The next prime is 47939543. The reversal of 47939520 is 2593974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24009 + ... + 25928.

It is an arithmetic number, because the mean of its divisors is an integer number (2718054).

Almost surely, 2^47939520 is an apocalyptic number.

47939520 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47939520 is an abundant number, since it is smaller than the sum of its proper divisors (104271504).

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

47939520 is a wasteful number, since it uses less digits than its factorization.

47939520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49957 (or 49947 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 47939520 is about 6923.8370864716. The cubic root of 47939520 is about 363.2714162837.

The spelling of 47939520 in words is "forty-seven million, nine hundred thirty-nine thousand, five hundred twenty".