50491819 has 16 divisors (see below), whose sum is σ = 61718976. Its totient is φ = 40320000.

The previous prime is 50491801. The next prime is 50491829. The reversal of 50491819 is 91819405.

It is not a de Polignac number, because 50491819 - 2¹¹ = 50489771 is a prime.

It is a super-2 number, since 2×50491819² = 5098847571857522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50491829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9919 + ... + 14119.

It is an arithmetic number, because the mean of its divisors is an integer number (3857436).

Almost surely, 2^50491819 is an apocalyptic number.

50491819 is a deficient number, since it is larger than the sum of its proper divisors (11227157).

50491819 is a wasteful number, since it uses less digits than its factorization.

50491819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4326.

The product of its (nonzero) digits is 12960, while the sum is 37.

The square root of 50491819 is about 7105.7595653104. The cubic root of 50491819 is about 369.6071286449.

The spelling of 50491819 in words is "fifty million, four hundred ninety-one thousand, eight hundred nineteen".