49615 has 4 divisors (see below), whose sum is σ = 59544. Its totient is φ = 39688.

The previous prime is 49613. The next prime is 49627. The reversal of 49615 is 51694.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 51694 = 2 ⋅25847.

It is a cyclic number.

It is not a de Polignac number, because 49615 - 2¹ = 49613 is a prime.

It is a Duffinian number.

49615 is a lucky number.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 49615.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49613) 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, 4957 + ... + 4966.

It is an arithmetic number, because the mean of its divisors is an integer number (14886).

2⁴⁹⁶¹⁵ is an apocalyptic number.

49615 is a deficient number, since it is larger than the sum of its proper divisors (9929).

49615 is an equidigital number, since it uses as much as digits as its factorization.

49615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9928.

The product of its digits is 1080, while the sum is 25.

The square root of 49615 is about 222.7442479616. The cubic root of 49615 is about 36.7455144386.

It can be divided in two parts, 49 and 615, that multiplied together give a triangular number (30135 = T₂₄₅).

The spelling of 49615 in words is "forty-nine thousand, six hundred fifteen".