47555725 has 18 divisors (see below), whose sum is σ = 68598474. Its totient is φ = 32608800.

The previous prime is 47555723. The next prime is 47555773. The reversal of 47555725 is 52755574.

47555725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 4351396 + 43204329 = 2086^2 + 6573^2 .

It is not a de Polignac number, because 47555725 - 2¹ = 47555723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47555723) 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 17 ways as a sum of consecutive naturals, for example, 18186 + ... + 20635.

Almost surely, 2^47555725 is an apocalyptic number.

It is an amenable number.

47555725 is a deficient number, since it is larger than the sum of its proper divisors (21042749).

47555725 is a wasteful number, since it uses less digits than its factorization.

47555725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38845 (or 38833 counting only the distinct ones).

The product of its digits is 245000, while the sum is 40.

The square root of 47555725 is about 6896.0659074577. The cubic root of 47555725 is about 362.2993895956.

The spelling of 47555725 in words is "forty-seven million, five hundred fifty-five thousand, seven hundred twenty-five".