47442551 has 8 divisors (see below), whose sum is σ = 51708720. Its totient is φ = 43264512.

The previous prime is 47442533. The next prime is 47442553. The reversal of 47442551 is 15524474.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 47442551 - 2¹⁴ = 47426167 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 (47442553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20906 + ... + 23063.

It is an arithmetic number, because the mean of its divisors is an integer number (6463590).

Almost surely, 2^47442551 is an apocalyptic number.

47442551 is a deficient number, since it is larger than the sum of its proper divisors (4266169).

47442551 is a wasteful number, since it uses less digits than its factorization.

47442551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44065.

The product of its digits is 22400, while the sum is 32.

The square root of 47442551 is about 6887.8553265875. The cubic root of 47442551 is about 362.0117590271.

The spelling of 47442551 in words is "forty-seven million, four hundred forty-two thousand, five hundred fifty-one".