5515571 has 4 divisors (see below), whose sum is σ = 5524944. Its totient is φ = 5506200.

The previous prime is 5515541. The next prime is 5515579. The reversal of 5515571 is 1755155.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1755155 = 5 ⋅351031.

It is a cyclic number.

It is not a de Polignac number, because 5515571 - 2¹⁴ = 5499187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515579) 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, 3740 + ... + 5001.

It is an arithmetic number, because the mean of its divisors is an integer number (1381236).

Almost surely, 2^5515571 is an apocalyptic number.

5515571 is a deficient number, since it is larger than the sum of its proper divisors (9373).

5515571 is an equidigital number, since it uses as much as digits as its factorization.

5515571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9372.

The product of its digits is 4375, while the sum is 29.

The square root of 5515571 is about 2348.5252819589. The cubic root of 5515571 is about 176.6838387643.

The spelling of 5515571 in words is "five million, five hundred fifteen thousand, five hundred seventy-one".