25413321 has 16 divisors (see below), whose sum is σ = 35731584. Its totient is φ = 16034304.

The previous prime is 25413307. The next prime is 25413329. The reversal of 25413321 is 12331452.

It is not a de Polignac number, because 25413321 - 2¹¹ = 25411273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25413329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4795 + ... + 8591.

It is an arithmetic number, because the mean of its divisors is an integer number (2233224).

Almost surely, 2^25413321 is an apocalyptic number.

It is an amenable number.

25413321 is a deficient number, since it is larger than the sum of its proper divisors (10318263).

25413321 is a wasteful number, since it uses less digits than its factorization.

25413321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3920.

The product of its digits is 720, while the sum is 21.

The square root of 25413321 is about 5041.1626635132. The cubic root of 25413321 is about 294.0043846817.

Adding to 25413321 its reverse (12331452), we get a palindrome (37744773).

The spelling of 25413321 in words is "twenty-five million, four hundred thirteen thousand, three hundred twenty-one".