25280052777505 has 16 divisors (see below), whose sum is σ = 31382590337280. Its totient is φ = 19526377812928.

The previous prime is 25280052777467. The next prime is 25280052777517. The reversal of 25280052777505 is 50577725008252.

It is a cyclic number.

It is not a de Polignac number, because 25280052777505 - 2⁴³ = 16483959755297 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9038484 + ... + 11500186.

It is an arithmetic number, because the mean of its divisors is an integer number (1961411896080).

Almost surely, 2^{25280052777505} is an apocalyptic number.

It is an amenable number.

25280052777505 is a deficient number, since it is larger than the sum of its proper divisors (6102537559775).

25280052777505 is a wasteful number, since it uses less digits than its factorization.

25280052777505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2532560.

The product of its (nonzero) digits is 13720000, while the sum is 55.

The spelling of 25280052777505 in words is "twenty-five trillion, two hundred eighty billion, fifty-two million, seven hundred seventy-seven thousand, five hundred five".