48051509 has 4 divisors (see below), whose sum is σ = 52419840. Its totient is φ = 43683180.

The previous prime is 48051491. The next prime is 48051533. The reversal of 48051509 is 90515084.

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 48051509 - 2¹² = 48047413 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (48051539) 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, 2184149 + ... + 2184170.

It is an arithmetic number, because the mean of its divisors is an integer number (13104960).

Almost surely, 2^48051509 is an apocalyptic number.

It is an amenable number.

48051509 is a deficient number, since it is larger than the sum of its proper divisors (4368331).

48051509 is a wasteful number, since it uses less digits than its factorization.

48051509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4368330.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 48051509 is about 6931.9195754134. The cubic root of 48051509 is about 363.5540694059.

The spelling of 48051509 in words is "forty-eight million, fifty-one thousand, five hundred nine".