47725081 has 2 divisors, whose sum is σ = 47725082. Its totient is φ = 47725080.

The previous prime is 47725049. The next prime is 47725091. The reversal of 47725081 is 18052774.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35760400 + 11964681 = 5980^2 + 3459^2 .

It is a cyclic number.

It is not a de Polignac number, because 47725081 - 2⁵ = 47725049 is a prime.

It is a super-2 number, since 2×47725081² = 4555366712913122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47725091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23862540 + 23862541.

It is an arithmetic number, because the mean of its divisors is an integer number (23862541).

Almost surely, 2^47725081 is an apocalyptic number.

It is an amenable number.

47725081 is a deficient number, since it is larger than the sum of its proper divisors (1).

47725081 is an equidigital number, since it uses as much as digits as its factorization.

47725081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 47725081 is about 6908.3341696823. The cubic root of 47725081 is about 362.7289550049.

The spelling of 47725081 in words is "forty-seven million, seven hundred twenty-five thousand, eighty-one".