248422521 has 4 divisors (see below), whose sum is σ = 331230032. Its totient is φ = 165615012.

The previous prime is 248422519. The next prime is 248422523. The reversal of 248422521 is 125224842.

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 an interprime number because it is at equal distance from previous prime (248422519) and next prime (248422523).

It is not a de Polignac number, because 248422521 - 2¹ = 248422519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248422523) 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, 41403751 + ... + 41403756.

It is an arithmetic number, because the mean of its divisors is an integer number (82807508).

Almost surely, 2^248422521 is an apocalyptic number.

It is an amenable number.

248422521 is a deficient number, since it is larger than the sum of its proper divisors (82807511).

248422521 is an equidigital number, since it uses as much as digits as its factorization.

248422521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82807510.

The product of its digits is 10240, while the sum is 30.

The square root of 248422521 is about 15761.4250941975. The cubic root of 248422521 is about 628.6327289267.

The spelling of 248422521 in words is "two hundred forty-eight million, four hundred twenty-two thousand, five hundred twenty-one".