5511091 has 4 divisors (see below), whose sum is σ = 5588784. Its totient is φ = 5433400.

The previous prime is 5511071. The next prime is 5511133. The reversal of 5511091 is 1901155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1901155 = 5 ⋅380231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5511091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5511001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38740 + ... + 38881.

It is an arithmetic number, because the mean of its divisors is an integer number (1397196).

Almost surely, 2^5511091 is an apocalyptic number.

5511091 is a deficient number, since it is larger than the sum of its proper divisors (77693).

5511091 is an equidigital number, since it uses as much as digits as its factorization.

5511091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77692.

The product of its (nonzero) digits is 225, while the sum is 22.

The square root of 5511091 is about 2347.5712981718. The cubic root of 5511091 is about 176.6359888981.

The spelling of 5511091 in words is "five million, five hundred eleven thousand, ninety-one".