49542823 has 16 divisors (see below), whose sum is σ = 57479040. Its totient is φ = 42228000.

The previous prime is 49542809. The next prime is 49542833. The reversal of 49542823 is 32824594.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 49542823 - 2¹³ = 49534631 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 (49542833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19936 + ... + 22282.

It is an arithmetic number, because the mean of its divisors is an integer number (3592440).

Almost surely, 2^49542823 is an apocalyptic number.

49542823 is a deficient number, since it is larger than the sum of its proper divisors (7936217).

49542823 is a wasteful number, since it uses less digits than its factorization.

49542823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2478.

The product of its digits is 69120, while the sum is 37.

The square root of 49542823 is about 7038.6662799141. Note that the first 3 decimals coincide. The cubic root of 49542823 is about 367.2768738281.

It can be divided in two parts, 4954 and 2823, that added together give a palindrome (7777).

The spelling of 49542823 in words is "forty-nine million, five hundred forty-two thousand, eight hundred twenty-three".