48303509 has 4 divisors (see below), whose sum is σ = 48456204. Its totient is φ = 48150816.

The previous prime is 48303481. The next prime is 48303527. The reversal of 48303509 is 90530384.

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 12567025 + 35736484 = 3545^2 + 5978^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-48303509 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 (48303539) 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, 75872 + ... + 76505.

It is an arithmetic number, because the mean of its divisors is an integer number (12114051).

Almost surely, 2^48303509 is an apocalyptic number.

It is an amenable number.

48303509 is a deficient number, since it is larger than the sum of its proper divisors (152695).

48303509 is a wasteful number, since it uses less digits than its factorization.

48303509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152694.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 48303509 is about 6950.0725895490. The cubic root of 48303509 is about 364.1884992563.

It can be divided in two parts, 4830350 and 9, that multiplied together give a triangular number (43473150 = T₉₃₂₄).

The spelling of 48303509 in words is "forty-eight million, three hundred three thousand, five hundred nine".