49113217 has 4 divisors (see below), whose sum is σ = 49163476. Its totient is φ = 49062960.

The previous prime is 49113191. The next prime is 49113223. The reversal of 49113217 is 71231194.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 71231194 = 2 ⋅35615597.

It can be written as a sum of positive squares in 2 ways, for example, as 29257281 + 19855936 = 5409^2 + 4456^2 .

It is a cyclic number.

It is not a de Polignac number, because 49113217 - 2⁷ = 49113089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49113247) 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, 23634 + ... + 25627.

It is an arithmetic number, because the mean of its divisors is an integer number (12290869).

Almost surely, 2^49113217 is an apocalyptic number.

It is an amenable number.

49113217 is a deficient number, since it is larger than the sum of its proper divisors (50259).

49113217 is an equidigital number, since it uses as much as digits as its factorization.

49113217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50258.

The product of its digits is 1512, while the sum is 28.

The square root of 49113217 is about 7008.0822626450. The cubic root of 49113217 is about 366.2121879682.

It can be divided in two parts, 4911 and 3217, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 49113217 in words is "forty-nine million, one hundred thirteen thousand, two hundred seventeen".