2251510244 has 24 divisors (see below), whose sum is σ = 4102430136. Its totient is φ = 1080288000.

The previous prime is 2251510237. The next prime is 2251510259. The reversal of 2251510244 is 4420151522.

It can be written as a sum of positive squares in 4 ways, for example, as 7744 + 2251502500 = 88^2 + 47450^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 102527 + ... + 122534.

It is an arithmetic number, because the mean of its divisors is an integer number (170934589).

Almost surely, 2^2251510244 is an apocalyptic number.

It is an amenable number.

2251510244 is a deficient number, since it is larger than the sum of its proper divisors (1850919892).

2251510244 is a wasteful number, since it uses less digits than its factorization.

2251510244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225167 (or 225165 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 2251510244 is about 47450.0816016158. The cubic root of 2251510244 is about 1310.6638136780.

Adding to 2251510244 its reverse (4420151522), we get a palindrome (6671661766).

The spelling of 2251510244 in words is "two billion, two hundred fifty-one million, five hundred ten thousand, two hundred forty-four".