2251435250 has 16 divisors (see below), whose sum is σ = 4214687256. Its totient is φ = 900574000.

The previous prime is 2251435231. The next prime is 2251435261. The reversal of 2251435250 is 525341522.

It can be written as a sum of positive squares in 4 ways, for example, as 251825161 + 1999610089 = 15869^2 + 44717^2 .

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, 4502621 + ... + 4503120.

Almost surely, 2^2251435250 is an apocalyptic number.

2251435250 is a deficient number, since it is larger than the sum of its proper divisors (1963252006).

2251435250 is an equidigital number, since it uses as much as digits as its factorization.

2251435250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9005758 (or 9005748 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 2251435250 is about 47449.2913540339. The cubic root of 2251435250 is about 1310.6492615178.

Adding to 2251435250 its reverse (525341522), we get a palindrome (2776776772).

The spelling of 2251435250 in words is "two billion, two hundred fifty-one million, four hundred thirty-five thousand, two hundred fifty".