2251520242 has 24 divisors (see below), whose sum is σ = 3515855616. Its totient is φ = 1080892176.

The previous prime is 2251520233. The next prime is 2251520279. The reversal of 2251520242 is 2420251522.

2251520242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 259783 + ... + 268309.

It is an arithmetic number, because the mean of its divisors is an integer number (146493984).

Almost surely, 2^2251520242 is an apocalyptic number.

2251520242 is a deficient number, since it is larger than the sum of its proper divisors (1264335374).

2251520242 is an equidigital number, since it uses as much as digits as its factorization.

2251520242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8682 (or 8629 counting only the distinct ones).

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

The square root of 2251520242 is about 47450.1869543208. The cubic root of 2251520242 is about 1310.6657537088.

Adding to 2251520242 its reverse (2420251522), we get a palindrome (4671771764).

The spelling of 2251520242 in words is "two billion, two hundred fifty-one million, five hundred twenty thousand, two hundred forty-two".