248828521 has 4 divisors (see below), whose sum is σ = 250476544. Its totient is φ = 247180500.

The previous prime is 248828519. The next prime is 248828527. The reversal of 248828521 is 125828842.

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 248828521 - 2¹ = 248828519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248828527) 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, 823785 + ... + 824086.

It is an arithmetic number, because the mean of its divisors is an integer number (62619136).

Almost surely, 2^248828521 is an apocalyptic number.

It is an amenable number.

248828521 is a deficient number, since it is larger than the sum of its proper divisors (1648023).

248828521 is a wasteful number, since it uses less digits than its factorization.

248828521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648022.

The product of its digits is 81920, while the sum is 40.

The square root of 248828521 is about 15774.2993822230. The cubic root of 248828521 is about 628.9750032824.

The spelling of 248828521 in words is "two hundred forty-eight million, eight hundred twenty-eight thousand, five hundred twenty-one".