47725161 has 32 divisors (see below), whose sum is σ = 73018368. Its totient is φ = 27445440.

The previous prime is 47725123. The next prime is 47725177. The reversal of 47725161 is 16152774.

47725161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 47725161 - 2⁷ = 47725033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (47725121) 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 31 ways as a sum of consecutive naturals, for example, 172155 + ... + 172431.

It is an arithmetic number, because the mean of its divisors is an integer number (2281824).

Almost surely, 2^47725161 is an apocalyptic number.

It is an amenable number.

47725161 is a deficient number, since it is larger than the sum of its proper divisors (25293207).

47725161 is a wasteful number, since it uses less digits than its factorization.

47725161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 541.

The product of its digits is 11760, while the sum is 33.

The square root of 47725161 is about 6908.3399597877. The cubic root of 47725161 is about 362.7291576817.

The spelling of 47725161 in words is "forty-seven million, seven hundred twenty-five thousand, one hundred sixty-one".