47522772 has 72 divisors (see below), whose sum is σ = 134289792. Its totient is φ = 14044800.

The previous prime is 47522771. The next prime is 47522773. The reversal of 47522772 is 27722574.

47522772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47522771) and next prime (47522773).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47522771) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14773 + ... + 17699.

It is an arithmetic number, because the mean of its divisors is an integer number (1865136).

Almost surely, 2^47522772 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 47522772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (67144896).

47522772 is an abundant number, since it is smaller than the sum of its proper divisors (86767020).

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

47522772 is a wasteful number, since it uses less digits than its factorization.

47522772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2989 (or 2984 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 47522772 is about 6893.6762326062. The cubic root of 47522772 is about 362.2156870168.

The spelling of 47522772 in words is "forty-seven million, five hundred twenty-two thousand, seven hundred seventy-two".