20250225 has 18 divisors (see below), whose sum is σ = 36270806. Its totient is φ = 10800000.

The previous prime is 20250203. The next prime is 20250227. The reversal of 20250225 is 52205202.

It can be written as a sum of positive squares in 3 ways, for example, as 7225344 + 13024881 = 2688^2 + 3609^2 .

It is not a de Polignac number, because 20250225 - 2⁵ = 20250193 is a prime.

It is a super-2 number, since 2×20250225² = 820143225101250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20250198 and 20250207.

It is not an unprimeable number, because it can be changed into a prime (20250227) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44776 + ... + 45225.

Almost surely, 2^20250225 is an apocalyptic number.

20250225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20250225 is a deficient number, since it is larger than the sum of its proper divisors (16020581).

20250225 is a wasteful number, since it uses less digits than its factorization.

20250225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90017 (or 90009 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 20250225 is about 4500.0249999306. The cubic root of 20250225 is about 272.5690984325.

Adding to 20250225 its reverse (52205202), we get a palindrome (72455427).

The spelling of 20250225 in words is "twenty million, two hundred fifty thousand, two hundred twenty-five".