47425187 has 4 divisors (see below), whose sum is σ = 47638080. Its totient is φ = 47212296.

The previous prime is 47425181. The next prime is 47425207. The reversal of 47425187 is 78152474.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 47425187 - 2¹⁰ = 47424163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 47425187.

It is not an unprimeable number, because it can be changed into a prime (47425181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106112 + ... + 106557.

It is an arithmetic number, because the mean of its divisors is an integer number (11909520).

Almost surely, 2^47425187 is an apocalyptic number.

47425187 is a deficient number, since it is larger than the sum of its proper divisors (212893).

47425187 is a wasteful number, since it uses less digits than its factorization.

47425187 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212892.

The product of its digits is 62720, while the sum is 38.

The square root of 47425187 is about 6886.5947317960. The cubic root of 47425187 is about 361.9675881362.

The spelling of 47425187 in words is "forty-seven million, four hundred twenty-five thousand, one hundred eighty-seven".