49565731 has 4 divisors (see below), whose sum is σ = 49587264. Its totient is φ = 49544200.

The previous prime is 49565701. The next prime is 49565743. The reversal of 49565731 is 13756594.

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 49565731 - 2¹⁵ = 49532963 is a prime.

It is a super-2 number, since 2×49565731² = 4913523379128722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49565701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6835 + ... + 12076.

It is an arithmetic number, because the mean of its divisors is an integer number (12396816).

Almost surely, 2^49565731 is an apocalyptic number.

49565731 is a deficient number, since it is larger than the sum of its proper divisors (21533).

49565731 is a wasteful number, since it uses less digits than its factorization.

49565731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21532.

The product of its digits is 113400, while the sum is 40.

The square root of 49565731 is about 7040.2933887729. The cubic root of 49565731 is about 367.3334732281. Note that the first 3 decimals are identical.

The spelling of 49565731 in words is "forty-nine million, five hundred sixty-five thousand, seven hundred thirty-one".