47731825 has 12 divisors (see below), whose sum is σ = 61229340. Its totient is φ = 36868160.

The previous prime is 47731823. The next prime is 47731861. The reversal of 47731825 is 52813774.

It can be written as a sum of positive squares in 6 ways, for example, as 5377761 + 42354064 = 2319^2 + 6508^2 .

It is not a de Polignac number, because 47731825 - 2¹ = 47731823 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47731823) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32194 + ... + 33643.

It is an arithmetic number, because the mean of its divisors is an integer number (5102445).

Almost surely, 2^47731825 is an apocalyptic number.

It is an amenable number.

47731825 is a deficient number, since it is larger than the sum of its proper divisors (13497515).

47731825 is a wasteful number, since it uses less digits than its factorization.

47731825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65876 (or 65871 counting only the distinct ones).

The product of its digits is 47040, while the sum is 37.

The square root of 47731825 is about 6908.8222585329. The cubic root of 47731825 is about 362.7460398640.

The spelling of 47731825 in words is "forty-seven million, seven hundred thirty-one thousand, eight hundred twenty-five".