25321413 has 16 divisors (see below), whose sum is σ = 37941120. Its totient is φ = 14904384.

The previous prime is 25321411. The next prime is 25321421. The reversal of 25321413 is 31412352.

It is not a de Polignac number, because 25321413 - 2¹ = 25321411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25321413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25321411) 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 15 ways as a sum of consecutive naturals, for example, 13218 + ... + 15011.

It is an arithmetic number, because the mean of its divisors is an integer number (2371320).

Almost surely, 2^25321413 is an apocalyptic number.

25321413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25321413 is a deficient number, since it is larger than the sum of its proper divisors (12619707).

25321413 is a wasteful number, since it uses less digits than its factorization.

25321413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28268.

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

The square root of 25321413 is about 5032.0386524748. The cubic root of 25321413 is about 293.6495314784.

Adding to 25321413 its reverse (31412352), we get a palindrome (56733765).

The spelling of 25321413 in words is "twenty-five million, three hundred twenty-one thousand, four hundred thirteen".