49637945 has 16 divisors (see below), whose sum is σ = 69361920. Its totient is φ = 33393984.

The previous prime is 49637941. The next prime is 49637971. The reversal of 49637945 is 54973694.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 49637945 - 2² = 49637941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49637945.

It is not an unprimeable number, because it can be changed into a prime (49637941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11525 + ... + 15234.

It is an arithmetic number, because the mean of its divisors is an integer number (4335120).

Almost surely, 2^49637945 is an apocalyptic number.

It is an amenable number.

49637945 is a deficient number, since it is larger than the sum of its proper divisors (19723975).

49637945 is a wasteful number, since it uses less digits than its factorization.

49637945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26824.

The product of its digits is 816480, while the sum is 47.

The square root of 49637945 is about 7045.4201436110. The cubic root of 49637945 is about 367.5117802076.

The spelling of 49637945 in words is "forty-nine million, six hundred thirty-seven thousand, nine hundred forty-five".