2531022 has 32 divisors (see below), whose sum is σ = 5605152. Its totient is φ = 756864.

The previous prime is 2531017. The next prime is 2531027. The reversal of 2531022 is 2201352.

It is an interprime number because it is at equal distance from previous prime (2531017) and next prime (2531027).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 2530992 and 2531010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2448 + ... + 3324.

It is an arithmetic number, because the mean of its divisors is an integer number (175161).

2^2531022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2531022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2802576).

2531022 is an abundant number, since it is smaller than the sum of its proper divisors (3074130).

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

2531022 is a wasteful number, since it uses less digits than its factorization.

2531022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2531022 is about 1590.9186025690. The cubic root of 2531022 is about 136.2799524532.

Adding to 2531022 its reverse (2201352), we get a palindrome (4732374).

It can be divided in two parts, 253 and 1022, that added together give a triangular number (1275 = T₅₀).

The spelling of 2531022 in words is "two million, five hundred thirty-one thousand, twenty-two".