49417509 has 4 divisors (see below), whose sum is σ = 65890016. Its totient is φ = 32945004.

The previous prime is 49417493. The next prime is 49417531. The reversal of 49417509 is 90571494.

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.

It is not a de Polignac number, because 49417509 - 2⁴ = 49417493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49417549) 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, 8236249 + ... + 8236254.

It is an arithmetic number, because the mean of its divisors is an integer number (16472504).

Almost surely, 2^49417509 is an apocalyptic number.

It is an amenable number.

49417509 is a deficient number, since it is larger than the sum of its proper divisors (16472507).

49417509 is a wasteful number, since it uses less digits than its factorization.

49417509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16472506.

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 49417509 is about 7029.7588152084. The cubic root of 49417509 is about 366.9669480489.

The spelling of 49417509 in words is "forty-nine million, four hundred seventeen thousand, five hundred nine".