5490649 has 2 divisors, whose sum is σ = 5490650. Its totient is φ = 5490648.

The previous prime is 5490647. The next prime is 5490673. The reversal of 5490649 is 9460945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2866249 + 2624400 = 1693^2 + 1620^2 .

It is a cyclic number.

It is not a de Polignac number, because 5490649 - 2¹ = 5490647 is a prime.

Together with 5490647, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5490647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2745324 + 2745325.

It is an arithmetic number, because the mean of its divisors is an integer number (2745325).

Almost surely, 2^5490649 is an apocalyptic number.

It is an amenable number.

5490649 is a deficient number, since it is larger than the sum of its proper divisors (1).

5490649 is an equidigital number, since it uses as much as digits as its factorization.

5490649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 5490649 is about 2343.2133919044. The cubic root of 5490649 is about 176.4173227847.

The spelling of 5490649 in words is "five million, four hundred ninety thousand, six hundred forty-nine".