49911645 has 64 divisors (see below), whose sum is σ = 95040000. Its totient is φ = 22353408.

The previous prime is 49911611. The next prime is 49911649. The reversal of 49911645 is 54611994.

It is not a de Polignac number, because 49911645 - 2¹⁹ = 49387357 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49911649) 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 63 ways as a sum of consecutive naturals, for example, 457851 + ... + 457959.

It is an arithmetic number, because the mean of its divisors is an integer number (1485000).

Almost surely, 2^49911645 is an apocalyptic number.

It is an amenable number.

49911645 is a deficient number, since it is larger than the sum of its proper divisors (45128355).

49911645 is a wasteful number, since it uses less digits than its factorization.

49911645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 213 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 49911645 is about 7064.8174074069. The cubic root of 49911645 is about 368.1860201818.

The spelling of 49911645 in words is "forty-nine million, nine hundred eleven thousand, six hundred forty-five".