5556091 has 2 divisors, whose sum is σ = 5556092. Its totient is φ = 5556090.

The previous prime is 5556079. The next prime is 5556107. The reversal of 5556091 is 1906555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5556091 - 2¹⁷ = 5425019 is a prime.

It is not a weakly prime, because it can be changed into another prime (5556071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2778045 + 2778046.

It is an arithmetic number, because the mean of its divisors is an integer number (2778046).

Almost surely, 2^5556091 is an apocalyptic number.

5556091 is a deficient number, since it is larger than the sum of its proper divisors (1).

5556091 is an equidigital number, since it uses as much as digits as its factorization.

5556091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 5556091 is about 2357.1361861377. The cubic root of 5556091 is about 177.1154512939.

The spelling of 5556091 in words is "five million, five hundred fifty-six thousand, ninety-one".