2531622 has 16 divisors (see below), whose sum is σ = 5146992. Its totient is φ = 829920.

The previous prime is 2531611. The next prime is 2531629. The reversal of 2531622 is 2261352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3093 + ... + 3824.

It is an arithmetic number, because the mean of its divisors is an integer number (321687).

2^2531622 is an apocalyptic number.

2531622 is an abundant number, since it is smaller than the sum of its proper divisors (2615370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2531622 is a wasteful number, since it uses less digits than its factorization.

2531622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6983.

The product of its digits is 720, while the sum is 21.

The square root of 2531622 is about 1591.1071616959. The cubic root of 2531622 is about 136.2907203710.

Adding to 2531622 its reverse (2261352), we get a palindrome (4792974).

The spelling of 2531622 in words is "two million, five hundred thirty-one thousand, six hundred twenty-two".