49413209 has 4 divisors (see below), whose sum is σ = 49432500. Its totient is φ = 49393920.

The previous prime is 49413193. The next prime is 49413227. The reversal of 49413209 is 90231494.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41319184 + 8094025 = 6428^2 + 2845^2 .

It is a cyclic number.

It is not a de Polignac number, because 49413209 - 2⁴ = 49413193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49413239) 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, 5084 + ... + 11165.

It is an arithmetic number, because the mean of its divisors is an integer number (12358125).

Almost surely, 2^49413209 is an apocalyptic number.

It is an amenable number.

49413209 is a deficient number, since it is larger than the sum of its proper divisors (19291).

49413209 is a wasteful number, since it uses less digits than its factorization.

49413209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19290.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 49413209 is about 7029.4529659142. The cubic root of 49413209 is about 366.9563040236.

The spelling of 49413209 in words is "forty-nine million, four hundred thirteen thousand, two hundred nine".