248522421 has 16 divisors (see below), whose sum is σ = 379119744. Its totient is φ = 141855744.

The previous prime is 248522419. The next prime is 248522437. The reversal of 248522421 is 124225842.

248522421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 248522421 - 2¹ = 248522419 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 (248522401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14461 + ... + 26573.

It is an arithmetic number, because the mean of its divisors is an integer number (23694984).

Almost surely, 2^248522421 is an apocalyptic number.

248522421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

248522421 is a deficient number, since it is larger than the sum of its proper divisors (130597323).

248522421 is a wasteful number, since it uses less digits than its factorization.

248522421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13100.

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

The square root of 248522421 is about 15764.5939053310. The cubic root of 248522421 is about 628.7169832220.

The spelling of 248522421 in words is "two hundred forty-eight million, five hundred twenty-two thousand, four hundred twenty-one".