25555552757782 has 16 divisors (see below), whose sum is σ = 38610931504320. Its totient is φ = 12685250937672.

The previous prime is 25555552757771. The next prime is 25555552757783. The reversal of 25555552757782 is 28775725555552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25555552757783) 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, 3757053 + ... + 8076295.

It is an arithmetic number, because the mean of its divisors is an integer number (2413183219020).

Almost surely, 2^{25555552757782} is an apocalyptic number.

25555552757782 is a deficient number, since it is larger than the sum of its proper divisors (13055378746538).

25555552757782 is a wasteful number, since it uses less digits than its factorization.

25555552757782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4340667.

The product of its digits is 1715000000, while the sum is 70.

The spelling of 25555552757782 in words is "twenty-five trillion, five hundred fifty-five billion, five hundred fifty-two million, seven hundred fifty-seven thousand, seven hundred eighty-two".