48578521 has 8 divisors (see below), whose sum is σ = 50072904. Its totient is φ = 47093760.

The previous prime is 48578479. The next prime is 48578527. The reversal of 48578521 is 12587584.

It can be written as a sum of positive squares in 4 ways, for example, as 36433296 + 12145225 = 6036^2 + 3485^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 48578521 - 2⁹ = 48578009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (48578527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8601 + ... + 13081.

It is an arithmetic number, because the mean of its divisors is an integer number (6259113).

Almost surely, 2^48578521 is an apocalyptic number.

It is an amenable number.

48578521 is a deficient number, since it is larger than the sum of its proper divisors (1494383).

48578521 is a wasteful number, since it uses less digits than its factorization.

48578521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4811.

The product of its digits is 89600, while the sum is 40.

The square root of 48578521 is about 6969.8293379393. The cubic root of 48578521 is about 364.8783506533.

The spelling of 48578521 in words is "forty-eight million, five hundred seventy-eight thousand, five hundred twenty-one".