2251500004 has 12 divisors (see below), whose sum is σ = 4243211644. Its totient is φ = 1039153824.

The previous prime is 2251499993. The next prime is 2251500007. The reversal of 2251500004 is 4000051522.

It can be written as a sum of positive squares in 2 ways, for example, as 1188870400 + 1062629604 = 34480^2 + 32598^2 .

It is not an unprimeable number, because it can be changed into a prime (2251500007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21648987 + ... + 21649090.

Almost surely, 2^2251500004 is an apocalyptic number.

It is an amenable number.

2251500004 is a deficient number, since it is larger than the sum of its proper divisors (1991711640).

2251500004 is a wasteful number, since it uses less digits than its factorization.

2251500004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43298094 (or 43298092 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 2251500004 is about 47449.9736986228. The cubic root of 2251500004 is about 1310.6618266832.

Adding to 2251500004 its reverse (4000051522), we get a palindrome (6251551526).

The spelling of 2251500004 in words is "two billion, two hundred fifty-one million, five hundred thousand, four".