49999945 has 8 divisors (see below), whose sum is σ = 60270336. Its totient is φ = 39819696.

The previous prime is 49999921. The next prime is 49999991. The reversal of 49999945 is 54999994.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 49999945 - 2¹¹ = 49997897 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 49999945.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21307 + ... + 23536.

It is an arithmetic number, because the mean of its divisors is an integer number (7533792).

Almost surely, 2^49999945 is an apocalyptic number.

It is an amenable number.

49999945 is a deficient number, since it is larger than the sum of its proper divisors (10270391).

49999945 is a wasteful number, since it uses less digits than its factorization.

49999945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45071.

The product of its digits is 4723920, while the sum is 58.

The square root of 49999945 is about 7071.0639227771. The cubic root of 49999945 is about 368.4030147828.

The spelling of 49999945 in words is "forty-nine million, nine hundred ninety-nine thousand, nine hundred forty-five".