22055525 has 12 divisors (see below), whose sum is σ = 27414912. Its totient is φ = 17601840.

The previous prime is 22055521. The next prime is 22055531. The reversal of 22055525 is 52555022.

It is not a de Polignac number, because 22055525 - 2² = 22055521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22055494 and 22055503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22055521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13292 + ... + 14858.

It is an arithmetic number, because the mean of its divisors is an integer number (2284576).

Almost surely, 2^22055525 is an apocalyptic number.

22055525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22055525 is a deficient number, since it is larger than the sum of its proper divisors (5359387).

22055525 is a wasteful number, since it uses less digits than its factorization.

22055525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2140 (or 2135 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 26.

The square root of 22055525 is about 4696.3310147391. The cubic root of 22055525 is about 280.4394671970.

The spelling of 22055525 in words is "twenty-two million, fifty-five thousand, five hundred twenty-five".