49999618 has 8 divisors (see below), whose sum is σ = 79411212. Its totient is φ = 23529216.

The previous prime is 49999613. The next prime is 49999619. The reversal of 49999618 is 81699994.

It can be written as a sum of positive squares in 2 ways, for example, as 49519369 + 480249 = 7037^2 + 693^2 .

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

It is not an unprimeable number, because it can be changed into a prime (49999613) 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, 735255 + ... + 735322.

Almost surely, 2^49999618 is an apocalyptic number.

49999618 is a deficient number, since it is larger than the sum of its proper divisors (29411594).

49999618 is a wasteful number, since it uses less digits than its factorization.

49999618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470596.

The product of its digits is 1259712, while the sum is 55.

The square root of 49999618 is about 7071.0408003348. The cubic root of 49999618 is about 368.4022116616.

The spelling of 49999618 in words is "forty-nine million, nine hundred ninety-nine thousand, six hundred eighteen".