25161340413 has 8 divisors (see below), whose sum is σ = 36598313376. Its totient is φ = 15249297200.

The previous prime is 25161340333. The next prime is 25161340417. The reversal of 25161340413 is 31404316152.

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 25161340413 - 2⁸ = 25161340157 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25161340417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381232398 + ... + 381232463.

It is an arithmetic number, because the mean of its divisors is an integer number (4574789172).

Almost surely, 2^25161340413 is an apocalyptic number.

It is an amenable number.

25161340413 is a deficient number, since it is larger than the sum of its proper divisors (11436972963).

25161340413 is a wasteful number, since it uses less digits than its factorization.

25161340413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 762464875.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 25161340413 its reverse (31404316152), we get a palindrome (56565656565).

The spelling of 25161340413 in words is "twenty-five billion, one hundred sixty-one million, three hundred forty thousand, four hundred thirteen".