2421205252 has 6 divisors (see below), whose sum is σ = 4237109198. Its totient is φ = 1210602624.

The previous prime is 2421205249. The next prime is 2421205261. The reversal of 2421205252 is 2525021242.

It can be written as a sum of positive squares in only one way, i.e., 2416115716 + 5089536 = 49154^2 + 2256^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302650653 + ... + 302650660.

Almost surely, 2^2421205252 is an apocalyptic number.

It is an amenable number.

2421205252 is a deficient number, since it is larger than the sum of its proper divisors (1815903946).

2421205252 is a wasteful number, since it uses less digits than its factorization.

2421205252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605301317 (or 605301315 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 25.

The square root of 2421205252 is about 49205.7440955830. The cubic root of 2421205252 is about 1342.7975363376.

Adding to 2421205252 its reverse (2525021242), we get a palindrome (4946226494).

The spelling of 2421205252 in words is "two billion, four hundred twenty-one million, two hundred five thousand, two hundred fifty-two".