2531606 has 32 divisors (see below), whose sum is σ = 5018112. Its totient is φ = 927360.

The previous prime is 2531593. The next prime is 2531609. The reversal of 2531606 is 6061352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2135 + ... + 3101.

It is an arithmetic number, because the mean of its divisors is an integer number (156816).

2^2531606 is an apocalyptic number.

2531606 is a deficient number, since it is larger than the sum of its proper divisors (2486506).

2531606 is a wasteful number, since it uses less digits than its factorization.

2531606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

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

The square root of 2531606 is about 1591.1021337425. The cubic root of 2531606 is about 136.2904332486.

Adding to 2531606 its reverse (6061352), we get a palindrome (8592958).

The spelling of 2531606 in words is "two million, five hundred thirty-one thousand, six hundred six".