25547422538663 has 16 divisors (see below), whose sum is σ = 27559752886272. Its totient is φ = 23612608404000.

The previous prime is 25547422538629. The next prime is 25547422538699. The reversal of 25547422538663 is 36683522474552.

It is not a de Polignac number, because 25547422538663 - 2¹² = 25547422534567 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25547422538596 and 25547422538605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25547421538663) 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, 26632253 + ... + 27574838.

It is an arithmetic number, because the mean of its divisors is an integer number (1722484555392).

Almost surely, 2^{25547422538663} is an apocalyptic number.

25547422538663 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25547422538663 is a deficient number, since it is larger than the sum of its proper divisors (2012330347609).

25547422538663 is a wasteful number, since it uses less digits than its factorization.

25547422538663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54207806.

The product of its digits is 290304000, while the sum is 62.

The spelling of 25547422538663 in words is "twenty-five trillion, five hundred forty-seven billion, four hundred twenty-two million, five hundred thirty-eight thousand, six hundred sixty-three".