49749899 has 4 divisors (see below), whose sum is σ = 49865760. Its totient is φ = 49634040.

The previous prime is 49749893. The next prime is 49749901. The reversal of 49749899 is 99894794.

It is a happy number.

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 49749899 - 2⁴ = 49749883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49749893) 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, 57284 + ... + 58145.

It is an arithmetic number, because the mean of its divisors is an integer number (12466440).

Almost surely, 2^49749899 is an apocalyptic number.

49749899 is a deficient number, since it is larger than the sum of its proper divisors (115861).

49749899 is a wasteful number, since it uses less digits than its factorization.

49749899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115860.

The product of its digits is 5878656, while the sum is 59.

The square root of 49749899 is about 7053.3608301291. The cubic root of 49749899 is about 367.7878695314.

The spelling of 49749899 in words is "forty-nine million, seven hundred forty-nine thousand, eight hundred ninety-nine".