49645273 has 4 divisors (see below), whose sum is σ = 49663908. Its totient is φ = 49626640.

The previous prime is 49645261. The next prime is 49645283. The reversal of 49645273 is 37254694.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40806544 + 8838729 = 6388^2 + 2973^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49645273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49645213) 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, 4486 + ... + 10927.

It is an arithmetic number, because the mean of its divisors is an integer number (12415977).

Almost surely, 2^49645273 is an apocalyptic number.

It is an amenable number.

49645273 is a deficient number, since it is larger than the sum of its proper divisors (18635).

49645273 is a wasteful number, since it uses less digits than its factorization.

49645273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18634.

The product of its digits is 181440, while the sum is 40.

The square root of 49645273 is about 7045.9401785709. The cubic root of 49645273 is about 367.5298644495.

The spelling of 49645273 in words is "forty-nine million, six hundred forty-five thousand, two hundred seventy-three".