5527561 has 4 divisors (see below), whose sum is σ = 5952772. Its totient is φ = 5102352.

The previous prime is 5527549. The next prime is 5527573. The reversal of 5527561 is 1657255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1657255 = 5 ⋅331451.

It is an interprime number because it is at equal distance from previous prime (5527549) and next prime (5527573).

It can be written as a sum of positive squares in 2 ways, for example, as 1547536 + 3980025 = 1244^2 + 1995^2 .

It is a cyclic number.

It is not a de Polignac number, because 5527561 - 2¹⁵ = 5494793 is a prime.

It is a Duffinian number.

5527561 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5527531) 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, 212586 + ... + 212611.

It is an arithmetic number, because the mean of its divisors is an integer number (1488193).

Almost surely, 2^5527561 is an apocalyptic number.

It is an amenable number.

5527561 is a deficient number, since it is larger than the sum of its proper divisors (425211).

5527561 is a wasteful number, since it uses less digits than its factorization.

5527561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425210.

The product of its digits is 10500, while the sum is 31.

The square root of 5527561 is about 2351.0765619180. The cubic root of 5527561 is about 176.8117739032.

The spelling of 5527561 in words is "five million, five hundred twenty-seven thousand, five hundred sixty-one".