49649999 has 8 divisors (see below), whose sum is σ = 57461760. Its totient is φ = 42017976.

The previous prime is 49649989. The next prime is 49650023. The reversal of 49649999 is 99994694.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 49649999 - 2¹⁶ = 49584463 is a prime.

It is a Duffinian number.

49649999 is a modest number, since divided by 9999 gives 4964 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49649909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44339 + ... + 45444.

It is an arithmetic number, because the mean of its divisors is an integer number (7182720).

Almost surely, 2^49649999 is an apocalyptic number.

49649999 is a deficient number, since it is larger than the sum of its proper divisors (7811761).

49649999 is an equidigital number, since it uses as much as digits as its factorization.

49649999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89869.

The product of its digits is 5668704, while the sum is 59.

The square root of 49649999 is about 7046.2755410217. The cubic root of 49649999 is about 367.5415264596.

The spelling of 49649999 in words is "forty-nine million, six hundred forty-nine thousand, nine hundred ninety-nine".