5558557 has 2 divisors, whose sum is σ = 5558558. Its totient is φ = 5558556.

The previous prime is 5558551. The next prime is 5558563. The reversal of 5558557 is 7558555.

It is a balanced prime because it is at equal distance from previous prime (5558551) and next prime (5558563).

It can be written as a sum of positive squares in only one way, i.e., 5134756 + 423801 = 2266^2 + 651^2 .

It is a cyclic number.

It is not a de Polignac number, because 5558557 - 2⁷ = 5558429 is a prime.

5558557 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5558551) 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, 2779278 + 2779279.

It is an arithmetic number, because the mean of its divisors is an integer number (2779279).

Almost surely, 2^5558557 is an apocalyptic number.

It is an amenable number.

5558557 is a deficient number, since it is larger than the sum of its proper divisors (1).

5558557 is an equidigital number, since it uses as much as digits as its factorization.

5558557 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 175000, while the sum is 40.

The square root of 5558557 is about 2357.6592204982. The cubic root of 5558557 is about 177.1416508949.

The spelling of 5558557 in words is "five million, five hundred fifty-eight thousand, five hundred fifty-seven".