25320747868417 has 8 divisors (see below), whose sum is σ = 26666190014400. Its totient is φ = 23976582843024.

The previous prime is 25320747868399. The next prime is 25320747868421. The reversal of 25320747868417 is 71486874702352.

It is a happy number.

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 25320747868417 - 2²³ = 25320739479809 is a prime.

It is a super-2 number, since 2×25320747868417² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25320747868477) 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, 319239442 + ... + 319318747.

It is an arithmetic number, because the mean of its divisors is an integer number (3333273751800).

Almost surely, 2^{25320747868417} is an apocalyptic number.

It is an amenable number.

25320747868417 is a deficient number, since it is larger than the sum of its proper divisors (1345442145983).

25320747868417 is a wasteful number, since it uses less digits than its factorization.

25320747868417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638560295.

The product of its (nonzero) digits is 126443520, while the sum is 64.

The spelling of 25320747868417 in words is "twenty-five trillion, three hundred twenty billion, seven hundred forty-seven million, eight hundred sixty-eight thousand, four hundred seventeen".