47139952 has 10 divisors (see below), whose sum is σ = 91333688. Its totient is φ = 23569968.

The previous prime is 47139947. The next prime is 47139971. The reversal of 47139952 is 25993174.

47139952 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1473108 + ... + 1473139.

Almost surely, 2^47139952 is an apocalyptic number.

It is an amenable number.

47139952 is a deficient number, since it is larger than the sum of its proper divisors (44193736).

47139952 is a wasteful number, since it uses less digits than its factorization.

47139952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2946255 (or 2946249 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 47139952 is about 6865.8540619503. The cubic root of 47139952 is about 361.2404533662.

The spelling of 47139952 in words is "forty-seven million, one hundred thirty-nine thousand, nine hundred fifty-two".