49999651 has 4 divisors (see below), whose sum is σ = 53845792. Its totient is φ = 46153512.

The previous prime is 49999643. The next prime is 49999667. The reversal of 49999651 is 15699994.

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

It is a cyclic number.

It is not a de Polignac number, because 49999651 - 2³ = 49999643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (49999151) 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, 1923051 + ... + 1923076.

It is an arithmetic number, because the mean of its divisors is an integer number (13461448).

Almost surely, 2^49999651 is an apocalyptic number.

49999651 is a deficient number, since it is larger than the sum of its proper divisors (3846141).

49999651 is a wasteful number, since it uses less digits than its factorization.

49999651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846140.

The product of its digits is 787320, while the sum is 52.

The square root of 49999651 is about 7071.0431337957. The cubic root of 49999651 is about 368.4022927107.

The spelling of 49999651 in words is "forty-nine million, nine hundred ninety-nine thousand, six hundred fifty-one".