2522405 has 8 divisors (see below), whose sum is σ = 3050784. Its totient is φ = 2002000.

The previous prime is 2522393. The next prime is 2522407. The reversal of 2522405 is 5042252.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2522405 - 2¹² = 2518309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2522407) 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, 1271 + ... + 2580.

It is an arithmetic number, because the mean of its divisors is an integer number (381348).

2^2522405 is an apocalyptic number.

It is an amenable number.

2522405 is a deficient number, since it is larger than the sum of its proper divisors (528379).

2522405 is a wasteful number, since it uses less digits than its factorization.

2522405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2522405 is about 1588.2081097891. The cubic root of 2522405 is about 136.1251191408.

Adding to 2522405 its reverse (5042252), we get a palindrome (7564657).

The spelling of 2522405 in words is "two million, five hundred twenty-two thousand, four hundred five".