25413523 has 4 divisors (see below), whose sum is σ = 25423720. Its totient is φ = 25403328.

The previous prime is 25413517. The next prime is 25413539. The reversal of 25413523 is 32531452.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25413523 - 2⁵ = 25413491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25413503) 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 3 ways as a sum of consecutive naturals, for example, 1411 + ... + 7267.

It is an arithmetic number, because the mean of its divisors is an integer number (6355930).

Almost surely, 2^25413523 is an apocalyptic number.

25413523 is a deficient number, since it is larger than the sum of its proper divisors (10197).

25413523 is an equidigital number, since it uses as much as digits as its factorization.

25413523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10196.

The product of its digits is 3600, while the sum is 25.

The square root of 25413523 is about 5041.1826985341. The cubic root of 25413523 is about 294.0051636528.

Adding to 25413523 its reverse (32531452), we get a palindrome (57944975).

The spelling of 25413523 in words is "twenty-five million, four hundred thirteen thousand, five hundred twenty-three".