2523415 has 4 divisors (see below), whose sum is σ = 3028104. Its totient is φ = 2018728.

The previous prime is 2523413. The next prime is 2523419. The reversal of 2523415 is 5143252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2523415 - 2¹ = 2523413 is a prime.

It is a Duffinian number.

2523415 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2523413) 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, 252337 + ... + 252346.

It is an arithmetic number, because the mean of its divisors is an integer number (757026).

2^2523415 is an apocalyptic number.

2523415 is a deficient number, since it is larger than the sum of its proper divisors (504689).

2523415 is an equidigital number, since it uses as much as digits as its factorization.

2523415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504688.

The product of its digits is 1200, while the sum is 22.

The square root of 2523415 is about 1588.5260463713. The cubic root of 2523415 is about 136.1432854046.

Adding to 2523415 its reverse (5143252), we get a palindrome (7666667).

The spelling of 2523415 in words is "two million, five hundred twenty-three thousand, four hundred fifteen".