25513039423 has 8 divisors (see below), whose sum is σ = 25969798800. Its totient is φ = 25057091328.

The previous prime is 25513039417. The next prime is 25513039429. The reversal of 25513039423 is 32493031552.

It is an interprime number because it is at equal distance from previous prime (25513039417) and next prime (25513039429).

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 25513039423 - 2⁹ = 25513038911 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 (25513039429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139186 + ... + 265327.

It is an arithmetic number, because the mean of its divisors is an integer number (3246224850).

Almost surely, 2^25513039423 is an apocalyptic number.

25513039423 is a deficient number, since it is larger than the sum of its proper divisors (456759377).

25513039423 is a wasteful number, since it uses less digits than its factorization.

25513039423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405641.

The product of its (nonzero) digits is 97200, while the sum is 37.

The spelling of 25513039423 in words is "twenty-five billion, five hundred thirteen million, thirty-nine thousand, four hundred twenty-three".