5491511 has 2 divisors, whose sum is σ = 5491512. Its totient is φ = 5491510.

The previous prime is 5491501. The next prime is 5491523. The reversal of 5491511 is 1151945.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5491511 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5491501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2745755 + 2745756.

It is an arithmetic number, because the mean of its divisors is an integer number (2745756).

Almost surely, 2^5491511 is an apocalyptic number.

5491511 is a deficient number, since it is larger than the sum of its proper divisors (1).

5491511 is an equidigital number, since it uses as much as digits as its factorization.

5491511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 900, while the sum is 26.

The square root of 5491511 is about 2343.3973201316. The cubic root of 5491511 is about 176.4265544666.

The spelling of 5491511 in words is "five million, four hundred ninety-one thousand, five hundred eleven".