2250648481 has 3 divisors (see below), whose sum is σ = 2250695923. Its totient is φ = 2250601040.

The previous prime is 2250648451. The next prime is 2250648493. The reversal of 2250648481 is 1848460522.

It is a happy number.

The square root of 2250648481 is 47441.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 863830881 + 1386817600 = 29391^2 + 37240^2 .

It is not a de Polignac number, because 2250648481 - 2²⁷ = 2116430753 is a prime.

It is a super-2 number, since 2×2250648481² = 10130837170055214722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2250648451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 23721 + ... + 71161.

Almost surely, 2^2250648481 is an apocalyptic number.

2250648481 is the 47441-st square number.

2250648481 is the 23721-st centered octagonal number.

It is an amenable number.

2250648481 is a deficient number, since it is larger than the sum of its proper divisors (47442).

2250648481 is an frugal number, since it uses more digits than its factorization.

2250648481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94882 (or 47441 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 40.

The cubic root of 2250648481 is about 1310.4965739750.

The spelling of 2250648481 in words is "two billion, two hundred fifty million, six hundred forty-eight thousand, four hundred eighty-one".