48251009 has 4 divisors (see below), whose sum is σ = 48269760. Its totient is φ = 48232260.

The previous prime is 48251003. The next prime is 48251011. The reversal of 48251009 is 90015284.

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 a de Polignac number, because none of the positive numbers 2^k-48251009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48251003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4757 + ... + 10914.

It is an arithmetic number, because the mean of its divisors is an integer number (12067440).

Almost surely, 2^48251009 is an apocalyptic number.

It is an amenable number.

48251009 is a deficient number, since it is larger than the sum of its proper divisors (18751).

48251009 is a wasteful number, since it uses less digits than its factorization.

48251009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18750.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 48251009 is about 6946.2946237545. The cubic root of 48251009 is about 364.0565086564.

The spelling of 48251009 in words is "forty-eight million, two hundred fifty-one thousand, nine".