49542447 has 4 divisors (see below), whose sum is σ = 66056600. Its totient is φ = 33028296.

The previous prime is 49542421. The next prime is 49542463. The reversal of 49542447 is 74424594.

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

It is not a de Polignac number, because 49542447 - 2⁸ = 49542191 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 (49542487) 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, 8257072 + ... + 8257077.

It is an arithmetic number, because the mean of its divisors is an integer number (16514150).

Almost surely, 2^49542447 is an apocalyptic number.

49542447 is a deficient number, since it is larger than the sum of its proper divisors (16514153).

49542447 is a wasteful number, since it uses less digits than its factorization.

49542447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16514152.

The product of its digits is 161280, while the sum is 39.

The square root of 49542447 is about 7038.6395702579. The cubic root of 49542447 is about 367.2759446894.

The spelling of 49542447 in words is "forty-nine million, five hundred forty-two thousand, four hundred forty-seven".