47442571 has 4 divisors (see below), whose sum is σ = 51755544. Its totient is φ = 43129600.

The previous prime is 47442559. The next prime is 47442587. The reversal of 47442571 is 17524474.

It is a happy number.

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 47442571 - 2¹³ = 47434379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47446571) 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, 2156470 + ... + 2156491.

It is an arithmetic number, because the mean of its divisors is an integer number (12938886).

Almost surely, 2^47442571 is an apocalyptic number.

47442571 is a deficient number, since it is larger than the sum of its proper divisors (4312973).

47442571 is a wasteful number, since it uses less digits than its factorization.

47442571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4312972.

The product of its digits is 31360, while the sum is 34.

The square root of 47442571 is about 6887.8567784181. The cubic root of 47442571 is about 362.0118098973.

The spelling of 47442571 in words is "forty-seven million, four hundred forty-two thousand, five hundred seventy-one".