5526581 has 4 divisors (see below), whose sum is σ = 5851692. Its totient is φ = 5201472.

The previous prime is 5526553. The next prime is 5526583. The reversal of 5526581 is 1856255.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1856255 = 5 ⋅371251.

It can be written as a sum of positive squares in 2 ways, for example, as 3964081 + 1562500 = 1991^2 + 1250^2 .

It is a cyclic number.

It is not a de Polignac number, because 5526581 - 2²² = 1332277 is a prime.

It is a super-2 number, since 2×5526581² = 61086195099122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5526583) 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, 162530 + ... + 162563.

It is an arithmetic number, because the mean of its divisors is an integer number (1462923).

Almost surely, 2^5526581 is an apocalyptic number.

It is an amenable number.

5526581 is a deficient number, since it is larger than the sum of its proper divisors (325111).

5526581 is a wasteful number, since it uses less digits than its factorization.

5526581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325110.

The product of its digits is 12000, while the sum is 32.

The square root of 5526581 is about 2350.8681375186. The cubic root of 5526581 is about 176.8013240996.

The spelling of 5526581 in words is "five million, five hundred twenty-six thousand, five hundred eighty-one".