25505413 has 8 divisors (see below), whose sum is σ = 27532800. Its totient is φ = 23554608.

The previous prime is 25505411. The next prime is 25505419. The reversal of 25505413 is 31450552.

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

It is a cyclic number.

It is not a de Polignac number, because 25505413 - 2¹ = 25505411 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 (25505411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18453 + ... + 19786.

It is an arithmetic number, because the mean of its divisors is an integer number (3441600).

Almost surely, 2^25505413 is an apocalyptic number.

25505413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

25505413 is a deficient number, since it is larger than the sum of its proper divisors (2027387).

25505413 is a wasteful number, since it uses less digits than its factorization.

25505413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38291.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 25505413 is about 5050.2884076060. The cubic root of 25505413 is about 294.3590912077.

Adding to 25505413 its reverse (31450552), we get a palindrome (56955965).

The spelling of 25505413 in words is "twenty-five million, five hundred five thousand, four hundred thirteen".