49431599 has 4 divisors (see below), whose sum is σ = 56493264. Its totient is φ = 42369936.

The previous prime is 49431583. The next prime is 49431601. The reversal of 49431599 is 99513494.

It is a happy number.

49431599 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 99513494 = 2 ⋅49756747.

It is not a de Polignac number, because 49431599 - 2⁴ = 49431583 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 (49431299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3530822 + ... + 3530835.

It is an arithmetic number, because the mean of its divisors is an integer number (14123316).

Almost surely, 2^49431599 is an apocalyptic number.

49431599 is a deficient number, since it is larger than the sum of its proper divisors (7061665).

49431599 is an equidigital number, since it uses as much as digits as its factorization.

49431599 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7061664.

The product of its digits is 174960, while the sum is 44.

The square root of 49431599 is about 7030.7609118786. The cubic root of 49431599 is about 367.0018214711.

The spelling of 49431599 in words is "forty-nine million, four hundred thirty-one thousand, five hundred ninety-nine".