4955581 has 2 divisors, whose sum is σ = 4955582. Its totient is φ = 4955580.

The previous prime is 4955563. The next prime is 4955593. The reversal of 4955581 is 1855594.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3767481 + 1188100 = 1941^2 + 1090^2 .

It is a cyclic number.

It is not a de Polignac number, because 4955581 - 2¹⁹ = 4431293 is a prime.

It is a super-2 number, since 2×4955581² = 49115566095122, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4955581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4955081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2477790 + 2477791.

It is an arithmetic number, because the mean of its divisors is an integer number (2477791).

Almost surely, 2^4955581 is an apocalyptic number.

It is an amenable number.

4955581 is a deficient number, since it is larger than the sum of its proper divisors (1).

4955581 is an equidigital number, since it uses as much as digits as its factorization.

4955581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36000, while the sum is 37.

The square root of 4955581 is about 2226.1134292753. The cubic root of 4955581 is about 170.4897182507.

The spelling of 4955581 in words is "four million, nine hundred fifty-five thousand, five hundred eighty-one".