5545997 has 2 divisors, whose sum is σ = 5545998. Its totient is φ = 5545996.

The previous prime is 5545987. The next prime is 5545999. The reversal of 5545997 is 7995455.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5470921 + 75076 = 2339^2 + 274^2 .

It is a cyclic number.

It is not a de Polignac number, because 5545997 - 2⁶ = 5545933 is a prime.

Together with 5545999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5545999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772998 + 2772999.

It is an arithmetic number, because the mean of its divisors is an integer number (2772999).

Almost surely, 2^5545997 is an apocalyptic number.

It is an amenable number.

5545997 is a deficient number, since it is larger than the sum of its proper divisors (1).

5545997 is an equidigital number, since it uses as much as digits as its factorization.

5545997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 283500, while the sum is 44.

The square root of 5545997 is about 2354.9940551942. The cubic root of 5545997 is about 177.0081284105.

The spelling of 5545997 in words is "five million, five hundred forty-five thousand, nine hundred ninety-seven".