2424250021 has 2 divisors, whose sum is σ = 2424250022. Its totient is φ = 2424250020.

The previous prime is 2424250019. The next prime is 2424250061. The reversal of 2424250021 is 1200524242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1954877796 + 469372225 = 44214^2 + 21665^2 .

It is a cyclic number.

It is not a de Polignac number, because 2424250021 - 2¹ = 2424250019 is a prime.

Together with 2424250019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2424249974 and 2424250001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2424250061) 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 as a sum of consecutive naturals, namely, 1212125010 + 1212125011.

It is an arithmetic number, because the mean of its divisors is an integer number (1212125011).

Almost surely, 2^2424250021 is an apocalyptic number.

It is an amenable number.

2424250021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2424250021 is an equidigital number, since it uses as much as digits as its factorization.

2424250021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 2424250021 is about 49236.6735371105. The cubic root of 2424250021 is about 1343.3601756375.

Adding to 2424250021 its reverse (1200524242), we get a palindrome (3624774263).

The spelling of 2424250021 in words is "two billion, four hundred twenty-four million, two hundred fifty thousand, twenty-one".