5581451 has 2 divisors, whose sum is σ = 5581452. Its totient is φ = 5581450.

The previous prime is 5581447. The next prime is 5581463. The reversal of 5581451 is 1541855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5581451 - 2² = 5581447 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5581351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2790725 + 2790726.

It is an arithmetic number, because the mean of its divisors is an integer number (2790726).

Almost surely, 2^5581451 is an apocalyptic number.

5581451 is a deficient number, since it is larger than the sum of its proper divisors (1).

5581451 is an equidigital number, since it uses as much as digits as its factorization.

5581451 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000, while the sum is 29.

The square root of 5581451 is about 2362.5094708805. The cubic root of 5581451 is about 177.3845152388.

The spelling of 5581451 in words is "five million, five hundred eighty-one thousand, four hundred fifty-one".