47525140 has 24 divisors (see below), whose sum is σ = 107480520. Its totient is φ = 17547648.

The previous prime is 47525129. The next prime is 47525143. The reversal of 47525140 is 4152574.

It can be written as a sum of positive squares in 4 ways, for example, as 163216 + 47361924 = 404^2 + 6882^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47525099 and 47525108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47525143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91135 + ... + 91654.

It is an arithmetic number, because the mean of its divisors is an integer number (4478355).

Almost surely, 2^47525140 is an apocalyptic number.

It is an amenable number.

47525140 is an abundant number, since it is smaller than the sum of its proper divisors (59955380).

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

47525140 is a wasteful number, since it uses less digits than its factorization.

47525140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182811 (or 182809 counting only the distinct ones).

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

The square root of 47525140 is about 6893.8479820779. The cubic root of 47525140 is about 362.2217031677.

The spelling of 47525140 in words is "forty-seven million, five hundred twenty-five thousand, one hundred forty".