22150525 has 6 divisors (see below), whose sum is σ = 27466682. Its totient is φ = 17720400.

The previous prime is 22150511. The next prime is 22150529. The reversal of 22150525 is 52505122.

It can be written as a sum of positive squares in 3 ways, for example, as 3392964 + 18757561 = 1842^2 + 4331^2 .

It is not a de Polignac number, because 22150525 - 2⁵ = 22150493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22150496 and 22150505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22150529) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 442986 + ... + 443035.

Almost surely, 2^22150525 is an apocalyptic number.

22150525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22150525 is a deficient number, since it is larger than the sum of its proper divisors (5316157).

22150525 is an equidigital number, since it uses as much as digits as its factorization.

22150525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886031 (or 886026 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 22150525 is about 4706.4344253373. The cubic root of 22150525 is about 280.8415371126.

Adding to 22150525 its reverse (52505122), we get a palindrome (74655647).

The spelling of 22150525 in words is "twenty-two million, one hundred fifty thousand, five hundred twenty-five".