50749519 has 4 divisors (see below), whose sum is σ = 51829344. Its totient is φ = 49669696.

The previous prime is 50749487. The next prime is 50749537. The reversal of 50749519 is 91594705.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91594705 = 5 ⋅18318941.

It is a cyclic number.

It is not a de Polignac number, because 50749519 - 2⁵ = 50749487 is a prime.

It is a super-2 number, since 2×50749519² = 5151027357462722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50749319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539842 + ... + 539935.

It is an arithmetic number, because the mean of its divisors is an integer number (12957336).

Almost surely, 2^50749519 is an apocalyptic number.

50749519 is a deficient number, since it is larger than the sum of its proper divisors (1079825).

50749519 is a wasteful number, since it uses less digits than its factorization.

50749519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1079824.

The product of its (nonzero) digits is 56700, while the sum is 40.

The square root of 50749519 is about 7123.8696647258. The cubic root of 50749519 is about 370.2348618440.

The spelling of 50749519 in words is "fifty million, seven hundred forty-nine thousand, five hundred nineteen".