25670520346457 has 16 divisors (see below), whose sum is σ = 29377182796800. Its totient is φ = 21973728450960.

The previous prime is 25670520346433. The next prime is 25670520346501. The reversal of 25670520346457 is 75464302507652.

It is a cyclic number.

It is not a de Polignac number, because 25670520346457 - 2²⁰ = 25670519297881 is a prime.

It is a super-3 number, since 3×25670520346457³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25670520346157) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33236894 + ... + 34000472.

It is an arithmetic number, because the mean of its divisors is an integer number (1836073924800).

Almost surely, 2^{25670520346457} is an apocalyptic number.

It is an amenable number.

25670520346457 is a deficient number, since it is larger than the sum of its proper divisors (3706662450343).

25670520346457 is an equidigital number, since it uses as much as digits as its factorization.

25670520346457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770036.

The product of its (nonzero) digits is 42336000, while the sum is 56.

The spelling of 25670520346457 in words is "twenty-five trillion, six hundred seventy billion, five hundred twenty million, three hundred forty-six thousand, four hundred fifty-seven".