50749 has 4 divisors (see below), whose sum is σ = 53440. Its totient is φ = 48060.

The previous prime is 50741. The next prime is 50753. The reversal of 50749 is 94705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50749 - 2³ = 50741 is a prime.

It is a super-2 number, since 2×50749² = 5150922002, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50741) 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, 1317 + ... + 1354.

It is an arithmetic number, because the mean of its divisors is an integer number (13360).

2⁵⁰⁷⁴⁹ is an apocalyptic number.

It is an amenable number.

50749 is a deficient number, since it is larger than the sum of its proper divisors (2691).

50749 is a wasteful number, since it uses less digits than its factorization.

50749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2690.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 50749 is about 225.2753870266. The cubic root of 50749 is about 37.0233599746.

Subtracting 50749 from its reverse (94705), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 50749 in words is "fifty thousand, seven hundred forty-nine".