49798751 has 4 divisors (see below), whose sum is σ = 49815000. Its totient is φ = 49782504.

The previous prime is 49798717. The next prime is 49798759. The reversal of 49798751 is 15789794.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15789794 = 2 ⋅7894897.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49798751 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 49798751.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49798759) 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, 1976 + ... + 10173.

It is an arithmetic number, because the mean of its divisors is an integer number (12453750).

Almost surely, 2^49798751 is an apocalyptic number.

49798751 is a deficient number, since it is larger than the sum of its proper divisors (16249).

49798751 is a wasteful number, since it uses less digits than its factorization.

49798751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16248.

The product of its digits is 635040, while the sum is 50.

The square root of 49798751 is about 7056.8230103921. The cubic root of 49798751 is about 367.9082134625.

The spelling of 49798751 in words is "forty-nine million, seven hundred ninety-eight thousand, seven hundred fifty-one".