2606531 has 4 divisors (see below), whose sum is σ = 2667192. Its totient is φ = 2545872.

The previous prime is 2606519. The next prime is 2606551. The reversal of 2606531 is 1356062.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2606531 - 2¹⁸ = 2344387 is a prime.

It is a super-2 number, since 2×2606531² = 13588007707922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2606497 and 2606506.

It is not an unprimeable number, because it can be changed into a prime (2606551) 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, 30266 + ... + 30351.

It is an arithmetic number, because the mean of its divisors is an integer number (666798).

2^2606531 is an apocalyptic number.

2606531 is a deficient number, since it is larger than the sum of its proper divisors (60661).

2606531 is an equidigital number, since it uses as much as digits as its factorization.

2606531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60660.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 2606531 is about 1614.4754566112. The cubic root of 2606531 is about 137.6219260118.

The spelling of 2606531 in words is "two million, six hundred six thousand, five hundred thirty-one".