2025450025 has 9 divisors (see below), whose sum is σ = 2511837093. Its totient is φ = 1620180000.

The previous prime is 2025450017. The next prime is 2025450047. The reversal of 2025450025 is 5200545202.

It is a happy number.

The square root of 2025450025 is 45005.

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

It can be written as a sum of positive squares in 4 ways, for example, as 451265049 + 1574184976 = 21243^2 + 39676^2 .

It is not a de Polignac number, because 2025450025 - 2³ = 2025450017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 220525 + ... + 229525.

Almost surely, 2^2025450025 is an apocalyptic number.

2025450025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

2025450025 is the 45005-th square number.

2025450025 is the 22503-rd centered octagonal number.

It is an amenable number.

2025450025 is a deficient number, since it is larger than the sum of its proper divisors (486387068).

2025450025 is an frugal number, since it uses more digits than its factorization.

2025450025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18012 (or 9006 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 25.

The cubic root of 2025450025 is about 1265.2427109578.

Multiplying 2025450025 by its sum of digits (25), we get a square (50636250625 = 225025²).

2025450025 divided by its sum of digits (25) gives a square (81018001 = 9001²).

Adding to 2025450025 its reverse (5200545202), we get a palindrome (7225995227).

The spelling of 2025450025 in words is "two billion, twenty-five million, four hundred fifty thousand, twenty-five".