4273890625 has 21 divisors (see below), whose sum is σ = 5352529143. Its totient is φ = 3412575000.

The previous prime is 4273890619. The next prime is 4273890629. The reversal of 4273890625 is 5260983724.

The square root of 4273890625 is 65375.

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

It can be written as a sum of positive squares in 3 ways, for example, as 3744338481 + 529552144 = 61191^2 + 23012^2 .

It is not a de Polignac number, because 4273890625 - 2³ = 4273890617 is a prime.

It is a super-2 number, since 2×4273890625² = 36532282148925781250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4273890629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 20 ways as a sum of consecutive naturals, for example, 8171614 + ... + 8172136.

Almost surely, 2^4273890625 is an apocalyptic number.

4273890625 is the 65375-th square number.

4273890625 is the 32688-th centered octagonal number.

It is an amenable number.

4273890625 is a deficient number, since it is larger than the sum of its proper divisors (1078638518).

4273890625 is an frugal number, since it uses more digits than its factorization.

4273890625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076 (or 528 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The cubic root of 4273890625 is about 1622.8353821522.

The spelling of 4273890625 in words is "four billion, two hundred seventy-three million, eight hundred ninety thousand, six hundred twenty-five".