5539997 has 2 divisors, whose sum is σ = 5539998. Its totient is φ = 5539996.

The previous prime is 5539981. The next prime is 5539999. The reversal of 5539997 is 7999355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3632836 + 1907161 = 1906^2 + 1381^2 .

It is a cyclic number.

It is not a de Polignac number, because 5539997 - 2⁴ = 5539981 is a prime.

Together with 5539999, 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 (5539999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2769998 + 2769999.

It is an arithmetic number, because the mean of its divisors is an integer number (2769999).

Almost surely, 2^5539997 is an apocalyptic number.

It is an amenable number.

5539997 is a deficient number, since it is larger than the sum of its proper divisors (1).

5539997 is an equidigital number, since it uses as much as digits as its factorization.

5539997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 382725, while the sum is 47.

The square root of 5539997 is about 2353.7198218989. The cubic root of 5539997 is about 176.9442726242.

The spelling of 5539997 in words is "five million, five hundred thirty-nine thousand, nine hundred ninety-seven".