49591819 has 8 divisors (see below), whose sum is σ = 50248800. Its totient is φ = 48939456.

The previous prime is 49591811. The next prime is 49591879. The reversal of 49591819 is 91819594.

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

It is a cyclic number.

It is not a de Polignac number, because 49591819 - 2³ = 49591811 is a prime.

It is a super-2 number, since 2×49591819² = 4918697023457522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49591811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23887 + ... + 25879.

It is an arithmetic number, because the mean of its divisors is an integer number (6281100).

Almost surely, 2^49591819 is an apocalyptic number.

49591819 is a deficient number, since it is larger than the sum of its proper divisors (656981).

49591819 is a wasteful number, since it uses less digits than its factorization.

49591819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2309.

The product of its digits is 116640, while the sum is 46.

The square root of 49591819 is about 7042.1459087412. The cubic root of 49591819 is about 367.3979083037.

The spelling of 49591819 in words is "forty-nine million, five hundred ninety-one thousand, eight hundred nineteen".