22552461 has 6 divisors (see below), whose sum is σ = 32575790. Its totient is φ = 15034968.

The previous prime is 22552457. The next prime is 22552477. The reversal of 22552461 is 16425522.

It can be written as a sum of positive squares in only one way, i.e., 17690436 + 4862025 = 4206^2 + 2205^2 .

It is not a de Polignac number, because 22552461 - 2² = 22552457 is a prime.

It is a super-2 number, since 2×22552461² = 1017226994313042, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22552441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1252906 + ... + 1252923.

Almost surely, 2^22552461 is an apocalyptic number.

It is an amenable number.

22552461 is a deficient number, since it is larger than the sum of its proper divisors (10023329).

22552461 is a wasteful number, since it uses less digits than its factorization.

22552461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2505835 (or 2505832 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 22552461 is about 4748.9431455851. The cubic root of 22552461 is about 282.5300503184.

Adding to 22552461 its reverse (16425522), we get a palindrome (38977983).

The spelling of 22552461 in words is "twenty-two million, five hundred fifty-two thousand, four hundred sixty-one".