47405512 has 64 divisors (see below), whose sum is σ = 113581440. Its totient is φ = 18009600.

The previous prime is 47405509. The next prime is 47405521. The reversal of 47405512 is 21550474.

47405512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

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 in 15 ways as a sum of consecutive naturals, for example, 24318 + ... + 26194.

It is an arithmetic number, because the mean of its divisors is an integer number (1774710).

Almost surely, 2^47405512 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 47405512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56790720).

47405512 is an abundant number, since it is smaller than the sum of its proper divisors (66175928).

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

47405512 is a wasteful number, since it uses less digits than its factorization.

47405512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1942 (or 1938 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 47405512 is about 6885.1660836904. The cubic root of 47405512 is about 361.9175254457.

Adding to 47405512 its reverse (21550474), we get a palindrome (68955986).

The spelling of 47405512 in words is "forty-seven million, four hundred five thousand, five hundred twelve".