2522861 has 4 divisors (see below), whose sum is σ = 2752224. Its totient is φ = 2293500.

The previous prime is 2522837. The next prime is 2522867. The reversal of 2522861 is 1682252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2522861 - 2¹⁸ = 2260717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2522861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522867) 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, 114665 + ... + 114686.

It is an arithmetic number, because the mean of its divisors is an integer number (688056).

2^2522861 is an apocalyptic number.

It is an amenable number.

2522861 is a deficient number, since it is larger than the sum of its proper divisors (229363).

2522861 is a wasteful number, since it uses less digits than its factorization.

2522861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229362.

The product of its digits is 1920, while the sum is 26.

The square root of 2522861 is about 1588.3516613143. The cubic root of 2522861 is about 136.1333215394.

It can be divided in two parts, 252 and 2861, that added together give a palindrome (3113).

The spelling of 2522861 in words is "two million, five hundred twenty-two thousand, eight hundred sixty-one".