49513 has 4 divisors (see below), whose sum is σ = 50320. Its totient is φ = 48708.

The previous prime is 49499. The next prime is 49523. The reversal of 49513 is 31594.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31594 = 2 ⋅15797.

It is a cyclic number.

It is not a de Polignac number, because 49513 - 2⁵ = 49481 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 303 + ... + 436.

It is an arithmetic number, because the mean of its divisors is an integer number (12580).

2⁴⁹⁵¹³ is an apocalyptic number.

It is an amenable number.

49513 is a deficient number, since it is larger than the sum of its proper divisors (807).

49513 is an equidigital number, since it uses as much as digits as its factorization.

49513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 806.

The product of its digits is 540, while the sum is 22.

The square root of 49513 is about 222.5151680223. The cubic root of 49513 is about 36.7203163207.

The spelling of 49513 in words is "forty-nine thousand, five hundred thirteen".