22025125 has 8 divisors (see below), whose sum is σ = 27487512. Its totient is φ = 17620000.

The previous prime is 22025119. The next prime is 22025137. The reversal of 22025125 is 52152022.

It can be written as a sum of positive squares in 4 ways, for example, as 3076516 + 18948609 = 1754^2 + 4353^2 .

It is not a de Polignac number, because 22025125 - 2³ = 22025117 is a prime.

It is a super-2 number, since 2×22025125² = 970212262531250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87976 + ... + 88225.

It is an arithmetic number, because the mean of its divisors is an integer number (3435939).

Almost surely, 2^22025125 is an apocalyptic number.

22025125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22025125 is a deficient number, since it is larger than the sum of its proper divisors (5462387).

22025125 is an equidigital number, since it uses as much as digits as its factorization.

22025125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176216 (or 176206 counting only the distinct ones).

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

The square root of 22025125 is about 4693.0933295642. The cubic root of 22025125 is about 280.3105610272.

Adding to 22025125 its reverse (52152022), we get a palindrome (74177147).

The spelling of 22025125 in words is "twenty-two million, twenty-five thousand, one hundred twenty-five".