49999995 has 24 divisors (see below), whose sum is σ = 87048000.
Its totient is φ = 26549376.
The previous prime is 49999991. The next prime is 50000017. The reversal of 49999995 is 59999994.
It is not a de Polignac number, because 49999995 - 22 = 49999991 is a prime.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (49999991) 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 23 ways as a sum of consecutive naturals, for example, 8431 + ... + 13079.
It is an arithmetic number, because the mean of its divisors is an integer number (3627000).
Almost surely, 249999995 is an apocalyptic number.
49999995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.
49999995 is a deficient number, since it is larger than the sum of its proper divisors (37048005).
49999995 is a wasteful number, since it uses less digits than its factorization.
49999995 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 4899 (or 4896 counting only the distinct ones).
The product of its digits is 10628820, while the sum is 63.
The square root of 49999995 is about 7071.0674583121.
The cubic root of 49999995 is about 368.4031375839.
Subtracting 49999995 from its reverse (59999994), we obtain a palindrome (9999999).
It can be divided in two parts, 4 and 9999995, that added together give a palindrome (9999999).
The spelling of 49999995 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred ninety-five".