49718623 has 4 divisors (see below), whose sum is σ = 50460760. Its totient is φ = 48976488.

The previous prime is 49718593. The next prime is 49718629. The reversal of 49718623 is 32681794.

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 49718623 - 2²⁵ = 16164191 is a prime.

It is a super-2 number, since 2×49718623² = 4943882946032258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49718629) 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 3 ways as a sum of consecutive naturals, for example, 370968 + ... + 371101.

It is an arithmetic number, because the mean of its divisors is an integer number (12615190).

Almost surely, 2^49718623 is an apocalyptic number.

49718623 is a deficient number, since it is larger than the sum of its proper divisors (742137).

49718623 is an equidigital number, since it uses as much as digits as its factorization.

49718623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 742136.

The product of its digits is 72576, while the sum is 40.

The square root of 49718623 is about 7051.1433824593. The cubic root of 49718623 is about 367.7107816380.

The spelling of 49718623 in words is "forty-nine million, seven hundred eighteen thousand, six hundred twenty-three".