49997949 has 16 divisors (see below), whose sum is σ = 71808000. Its totient is φ = 30841776.

The previous prime is 49997933. The next prime is 49997953. The reversal of 49997949 is 94979994.

It is not a de Polignac number, because 49997949 - 2⁴ = 49997933 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 49997892 and 49997901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49997999) 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 15 ways as a sum of consecutive naturals, for example, 7749 + ... + 12650.

It is an arithmetic number, because the mean of its divisors is an integer number (4488000).

Almost surely, 2^49997949 is an apocalyptic number.

It is an amenable number.

49997949 is a deficient number, since it is larger than the sum of its proper divisors (21810051).

49997949 is a wasteful number, since it uses less digits than its factorization.

49997949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20464.

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

The square root of 49997949 is about 7070.9227827774. The cubic root of 49997949 is about 368.3981124961.

The spelling of 49997949 in words is "forty-nine million, nine hundred ninety-seven thousand, nine hundred forty-nine".