49845731 has 4 divisors (see below), whose sum is σ = 53680032. Its totient is φ = 46011432.

The previous prime is 49845713. The next prime is 49845739. The reversal of 49845731 is 13754894.

Added to its reverse (13754894) it gives a square (63600625 = 7975²).

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13754894 = 2 ⋅6877447.

It is a cyclic number.

It is not a de Polignac number, because 49845731 - 2¹⁴ = 49829347 is a prime.

It is a super-2 number, since 2×49845731² = 4969193797848722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49845739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1917131 + ... + 1917156.

It is an arithmetic number, because the mean of its divisors is an integer number (13420008).

Almost surely, 2^49845731 is an apocalyptic number.

49845731 is a deficient number, since it is larger than the sum of its proper divisors (3834301).

49845731 is a wasteful number, since it uses less digits than its factorization.

49845731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3834300.

The product of its digits is 120960, while the sum is 41.

The square root of 49845731 is about 7060.1509190668. The cubic root of 49845731 is about 368.0238716202.

Adding to 49845731 its reverse (13754894), we get a square (63600625 = 7975²).

The spelling of 49845731 in words is "forty-nine million, eight hundred forty-five thousand, seven hundred thirty-one".