48506509 has 4 divisors (see below), whose sum is σ = 48522240. Its totient is φ = 48490780.

The previous prime is 48506489. The next prime is 48506539. The reversal of 48506509 is 90560584.

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 a cyclic number.

It is not a de Polignac number, because 48506509 - 2⁹ = 48505997 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 (48506539) 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, 1549 + ... + 9970.

It is an arithmetic number, because the mean of its divisors is an integer number (12130560).

Almost surely, 2^48506509 is an apocalyptic number.

It is an amenable number.

48506509 is a deficient number, since it is larger than the sum of its proper divisors (15731).

48506509 is a wasteful number, since it uses less digits than its factorization.

48506509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15730.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 48506509 is about 6964.6614418793. The cubic root of 48506509 is about 364.6979649365.

The spelling of 48506509 in words is "forty-eight million, five hundred six thousand, five hundred nine".