25457043539663 has 8 divisors (see below), whose sum is σ = 26056311629088. Its totient is φ = 24864546841344.

The previous prime is 25457043539659. The next prime is 25457043539687. The reversal of 25457043539663 is 36693534075452.

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 25457043539663 - 2² = 25457043539659 is a prime.

It is a super-2 number, since 2×25457043539663² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25457043539596 and 25457043539605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25457043539633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1692840170 + ... + 1692855207.

It is an arithmetic number, because the mean of its divisors is an integer number (3257038953636).

Almost surely, 2^{25457043539663} is an apocalyptic number.

25457043539663 is a deficient number, since it is larger than the sum of its proper divisors (599268089425).

25457043539663 is a wasteful number, since it uses less digits than its factorization.

25457043539663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385695553.

The product of its (nonzero) digits is 244944000, while the sum is 62.

The spelling of 25457043539663 in words is "twenty-five trillion, four hundred fifty-seven billion, forty-three million, five hundred thirty-nine thousand, six hundred sixty-three".