49500013 has 4 divisors (see below), whose sum is σ = 51206940. Its totient is φ = 47793088.

The previous prime is 49499987. The next prime is 49500023. The reversal of 49500013 is 31000594.

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 19873764 + 29626249 = 4458^2 + 5443^2 .

It is a cyclic number.

It is not a de Polignac number, because 49500013 - 2²⁵ = 15945581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49500023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853420 + ... + 853477.

It is an arithmetic number, because the mean of its divisors is an integer number (12801735).

Almost surely, 2^49500013 is an apocalyptic number.

It is an amenable number.

49500013 is a deficient number, since it is larger than the sum of its proper divisors (1706927).

49500013 is a wasteful number, since it uses less digits than its factorization.

49500013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706926.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 49500013 is about 7035.6245636049. The cubic root of 49500013 is about 367.1710552454.

The spelling of 49500013 in words is "forty-nine million, five hundred thousand, thirteen".