49974999 has 4 divisors (see below), whose sum is σ = 66633336. Its totient is φ = 33316664.

The previous prime is 49974979. The next prime is 49975001. The reversal of 49974999 is 99947994.

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 49974999 - 2⁷ = 49974871 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49974979) 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, 8329164 + ... + 8329169.

It is an arithmetic number, because the mean of its divisors is an integer number (16658334).

Almost surely, 2^49974999 is an apocalyptic number.

49974999 is a deficient number, since it is larger than the sum of its proper divisors (16658337).

49974999 is a wasteful number, since it uses less digits than its factorization.

49974999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16658336.

The product of its digits is 6613488, while the sum is 60.

The square root of 49974999 is about 7069.2997531580. The cubic root of 49974999 is about 368.3417366460.

The spelling of 49974999 in words is "forty-nine million, nine hundred seventy-four thousand, nine hundred ninety-nine".