49204509 has 16 divisors (see below), whose sum is σ = 69574080. Its totient is φ = 30844800.

The previous prime is 49204501. The next prime is 49204523. The reversal of 49204509 is 90540294.

It is not a de Polignac number, because 49204509 - 2³ = 49204501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 49204509.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49204501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4659 + ... + 10959.

It is an arithmetic number, because the mean of its divisors is an integer number (4348380).

Almost surely, 2^49204509 is an apocalyptic number.

It is an amenable number.

49204509 is a deficient number, since it is larger than the sum of its proper divisors (20369571).

49204509 is a wasteful number, since it uses less digits than its factorization.

49204509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 49204509 is about 7014.5925754815. The cubic root of 49204509 is about 366.4389534689.

The spelling of 49204509 in words is "forty-nine million, two hundred four thousand, five hundred nine".