49719619 has 4 divisors (see below), whose sum is σ = 50049040. Its totient is φ = 49390200.

The previous prime is 49719613. The next prime is 49719623. The reversal of 49719619 is 91691794.

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 49719619 - 2⁹ = 49719107 is a prime.

It is a super-2 number, since 2×49719619² = 4944081027010322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49719613) 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, 164484 + ... + 164785.

It is an arithmetic number, because the mean of its divisors is an integer number (12512260).

Almost surely, 2^49719619 is an apocalyptic number.

49719619 is a deficient number, since it is larger than the sum of its proper divisors (329421).

49719619 is a wasteful number, since it uses less digits than its factorization.

49719619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329420.

The product of its digits is 122472, while the sum is 46.

The square root of 49719619 is about 7051.2140089491. The cubic root of 49719619 is about 367.7132370391.

The spelling of 49719619 in words is "forty-nine million, seven hundred nineteen thousand, six hundred nineteen".