5521491 has 6 divisors (see below), whose sum is σ = 7975500. Its totient is φ = 3680988.

The previous prime is 5521489. The next prime is 5521499. The reversal of 5521491 is 1941255.

It is not a de Polignac number, because 5521491 - 2¹ = 5521489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5521499) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 306741 + ... + 306758.

It is an arithmetic number, because the mean of its divisors is an integer number (1329250).

Almost surely, 2^5521491 is an apocalyptic number.

5521491 is a deficient number, since it is larger than the sum of its proper divisors (2454009).

5521491 is a wasteful number, since it uses less digits than its factorization.

5521491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613505 (or 613502 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

The square root of 5521491 is about 2349.7853093421. The cubic root of 5521491 is about 176.7470292196.

The spelling of 5521491 in words is "five million, five hundred twenty-one thousand, four hundred ninety-one".