25539028452117 has 96 divisors (see below), whose sum is σ = 40675879206144. Its totient is φ = 15957521510400.

The previous prime is 25539028452101. The next prime is 25539028452127. The reversal of 25539028452117 is 71125482093552.

25539028452117 is a `hidden beast` number, since 2 + 5 + 5 + 3 + 90 + 28 + 4 + 521 + 1 + 7 = 666.

It is not a de Polignac number, because 25539028452117 - 2⁴ = 25539028452101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25539028452127) 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 95 ways as a sum of consecutive naturals, for example, 1409351817 + ... + 1409369937.

It is an arithmetic number, because the mean of its divisors is an integer number (423707075064).

Almost surely, 2^{25539028452117} is an apocalyptic number.

25539028452117 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

25539028452117 is a deficient number, since it is larger than the sum of its proper divisors (15136850754027).

25539028452117 is a wasteful number, since it uses less digits than its factorization.

25539028452117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19561 (or 19549 counting only the distinct ones).

The product of its (nonzero) digits is 6048000, while the sum is 54.

The spelling of 25539028452117 in words is "twenty-five trillion, five hundred thirty-nine billion, twenty-eight million, four hundred fifty-two thousand, one hundred seventeen".