48999619 has 4 divisors (see below), whose sum is σ = 49027680. Its totient is φ = 48971560.

The previous prime is 48999611. The next prime is 48999649. The reversal of 48999619 is 91699984.

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 48999619 - 2³ = 48999611 is a prime.

It is a super-2 number, since 2×48999619² = 4801925324290322, which contains 22 as substring.

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 48999619.

It is not an unprimeable number, because it can be changed into a prime (48999611) 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, 11224 + ... + 14965.

It is an arithmetic number, because the mean of its divisors is an integer number (12256920).

Almost surely, 2^48999619 is an apocalyptic number.

48999619 is the 3742-nd nonagonal number.

48999619 is a deficient number, since it is larger than the sum of its proper divisors (28061).

48999619 is a wasteful number, since it uses less digits than its factorization.

48999619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28060.

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

The square root of 48999619 is about 6999.9727856614. The cubic root of 48999619 is about 365.9296225675.

The spelling of 48999619 in words is "forty-eight million, nine hundred ninety-nine thousand, six hundred nineteen".