47125638 has 80 divisors (see below), whose sum is σ = 124930080. Its totient is φ = 12991104.

The previous prime is 47125627. The next prime is 47125651. The reversal of 47125638 is 83652174.

47125638 is a `hidden beast` number, since 4 + 7 + 12 + 5 + 638 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 32170 + ... + 33602.

It is an arithmetic number, because the mean of its divisors is an integer number (1561626).

Almost surely, 2^47125638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47125638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62465040).

47125638 is an abundant number, since it is smaller than the sum of its proper divisors (77804442).

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

47125638 is a wasteful number, since it uses less digits than its factorization.

47125638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483 (or 1474 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 47125638 is about 6864.8115778949. The cubic root of 47125638 is about 361.2038862288.

The spelling of 47125638 in words is "forty-seven million, one hundred twenty-five thousand, six hundred thirty-eight".