47450111 has 4 divisors (see below), whose sum is σ = 50241312. Its totient is φ = 44658912.

The previous prime is 47450099. The next prime is 47450147. The reversal of 47450111 is 11105474.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11105474 = 2 ⋅5552737.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47450111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47450171) 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, 1395575 + ... + 1395608.

It is an arithmetic number, because the mean of its divisors is an integer number (12560328).

Almost surely, 2^47450111 is an apocalyptic number.

47450111 is a deficient number, since it is larger than the sum of its proper divisors (2791201).

47450111 is a wasteful number, since it uses less digits than its factorization.

47450111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2791200.

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 47450111 is about 6888.4040967411. The cubic root of 47450111 is about 362.0309869387.

Adding to 47450111 its reverse (11105474), we get a palindrome (58555585).

The spelling of 47450111 in words is "forty-seven million, four hundred fifty thousand, one hundred eleven".