248502328421 has 4 divisors (see below), whose sum is σ = 249875269644. Its totient is φ = 247129387200.

The previous prime is 248502328411. The next prime is 248502328427. The reversal of 248502328421 is 124823205842.

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 40064425921 + 208437902500 = 200161^2 + 456550^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248502328421 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 (248502328427) 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, 686470340 + ... + 686470701.

It is an arithmetic number, because the mean of its divisors is an integer number (62468817411).

Almost surely, 2^248502328421 is an apocalyptic number.

It is an amenable number.

248502328421 is a deficient number, since it is larger than the sum of its proper divisors (1372941223).

248502328421 is a wasteful number, since it uses less digits than its factorization.

248502328421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372941222.

The product of its (nonzero) digits is 245760, while the sum is 41.

The spelling of 248502328421 in words is "two hundred forty-eight billion, five hundred two million, three hundred twenty-eight thousand, four hundred twenty-one".