22345525 has 6 divisors (see below), whose sum is σ = 27708482. Its totient is φ = 17876400.

The previous prime is 22345517. The next prime is 22345537. The reversal of 22345525 is 52554322.

It can be written as a sum of positive squares in 3 ways, for example, as 5650129 + 16695396 = 2377^2 + 4086^2 .

It is not a de Polignac number, because 22345525 - 2³ = 22345517 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22345493 and 22345502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 446886 + ... + 446935.

Almost surely, 2^22345525 is an apocalyptic number.

22345525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22345525 is a deficient number, since it is larger than the sum of its proper divisors (5362957).

22345525 is an equidigital number, since it uses as much as digits as its factorization.

22345525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893831 (or 893826 counting only the distinct ones).

The product of its digits is 12000, while the sum is 28.

The square root of 22345525 is about 4727.1053510579. The cubic root of 22345525 is about 281.6632509341.

Adding to 22345525 its reverse (52554322), we get a palindrome (74899847).

The spelling of 22345525 in words is "twenty-two million, three hundred forty-five thousand, five hundred twenty-five".