22861525 has 6 divisors (see below), whose sum is σ = 28348322. Its totient is φ = 18289200.

The previous prime is 22861511. The next prime is 22861529. The reversal of 22861525 is 52516822.

It can be written as a sum of positive squares in 3 ways, for example, as 213444 + 22648081 = 462^2 + 4759^2 .

It is not a de Polignac number, because 22861525 - 2⁵ = 22861493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22861529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 457206 + ... + 457255.

Almost surely, 2^22861525 is an apocalyptic number.

22861525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22861525 is a deficient number, since it is larger than the sum of its proper divisors (5486797).

22861525 is an equidigital number, since it uses as much as digits as its factorization.

22861525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 914471 (or 914466 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 22861525 is about 4781.3727108436. The cubic root of 22861525 is about 283.8148176169.

The spelling of 22861525 in words is "twenty-two million, eight hundred sixty-one thousand, five hundred twenty-five".