47549906 has 4 divisors (see below), whose sum is σ = 71324862. Its totient is φ = 23774952.

The previous prime is 47549903. The next prime is 47549911. The reversal of 47549906 is 60994574.

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

It can be written as a sum of positive squares in only one way, i.e., 37884025 + 9665881 = 6155^2 + 3109^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (47549903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11887475 + ... + 11887478.

Almost surely, 2^47549906 is an apocalyptic number.

47549906 is a deficient number, since it is larger than the sum of its proper divisors (23774956).

47549906 is a wasteful number, since it uses less digits than its factorization.

47549906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23774955.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 47549906 is about 6895.6439873300. The cubic root of 47549906 is about 362.2846118015.

The spelling of 47549906 in words is "forty-seven million, five hundred forty-nine thousand, nine hundred six".