49419257 has 4 divisors (see below), whose sum is σ = 49577460. Its totient is φ = 49261056.

The previous prime is 49419241. The next prime is 49419259. The reversal of 49419257 is 75291494.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75291494 = 2 ⋅37645747.

It can be written as a sum of positive squares in 2 ways, for example, as 18627856 + 30791401 = 4316^2 + 5549^2 .

It is a cyclic number.

It is not a de Polignac number, because 49419257 - 2⁴ = 49419241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49419259) 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, 78632 + ... + 79257.

It is an arithmetic number, because the mean of its divisors is an integer number (12394365).

Almost surely, 2^49419257 is an apocalyptic number.

It is an amenable number.

49419257 is a deficient number, since it is larger than the sum of its proper divisors (158203).

49419257 is a wasteful number, since it uses less digits than its factorization.

49419257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158202.

The product of its digits is 90720, while the sum is 41.

The square root of 49419257 is about 7029.8831426987. The cubic root of 49419257 is about 366.9712747924.

The spelling of 49419257 in words is "forty-nine million, four hundred nineteen thousand, two hundred fifty-seven".