48328509 has 4 divisors (see below), whose sum is σ = 64438016. Its totient is φ = 32219004.

The previous prime is 48328499. The next prime is 48328519. The reversal of 48328509 is 90582384.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (48328499) and next prime (48328519).

It is not a de Polignac number, because 48328509 - 2¹³ = 48320317 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 (48328519) 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, 8054749 + ... + 8054754.

It is an arithmetic number, because the mean of its divisors is an integer number (16109504).

Almost surely, 2^48328509 is an apocalyptic number.

It is an amenable number.

48328509 is a deficient number, since it is larger than the sum of its proper divisors (16109507).

48328509 is a wasteful number, since it uses less digits than its factorization.

48328509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16109506.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 48328509 is about 6951.8708992616. The cubic root of 48328509 is about 364.2513183101.

The spelling of 48328509 in words is "forty-eight million, three hundred twenty-eight thousand, five hundred nine".