5550557 has 2 divisors, whose sum is σ = 5550558. Its totient is φ = 5550556.

The previous prime is 5550553. The next prime is 5550563. The reversal of 5550557 is 7550555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4414201 + 1136356 = 2101^2 + 1066^2 .

It is a cyclic number.

It is not a de Polignac number, because 5550557 - 2² = 5550553 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5550553) 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 as a sum of consecutive naturals, namely, 2775278 + 2775279.

It is an arithmetic number, because the mean of its divisors is an integer number (2775279).

Almost surely, 2^5550557 is an apocalyptic number.

It is an amenable number.

5550557 is a deficient number, since it is larger than the sum of its proper divisors (1).

5550557 is an equidigital number, since it uses as much as digits as its factorization.

5550557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21875, while the sum is 32.

The square root of 5550557 is about 2355.9620115783. The cubic root of 5550557 is about 177.0566280129.

The spelling of 5550557 in words is "five million, five hundred fifty thousand, five hundred fifty-seven".