25782783055 has 8 divisors (see below), whose sum is σ = 30955816800. Its totient is φ = 20615241696.

The previous prime is 25782783053. The next prime is 25782783067. The reversal of 25782783055 is 55038728752.

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 25782783055 - 2¹ = 25782783053 is a prime.

It is a super-2 number, since 2×25782783055² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25782782993 and 25782783011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25782783053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1362760 + ... + 1381549.

It is an arithmetic number, because the mean of its divisors is an integer number (3869477100).

Almost surely, 2^25782783055 is an apocalyptic number.

25782783055 is a deficient number, since it is larger than the sum of its proper divisors (5173033745).

25782783055 is a wasteful number, since it uses less digits than its factorization.

25782783055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2746193.

The product of its (nonzero) digits is 4704000, while the sum is 52.

The spelling of 25782783055 in words is "twenty-five billion, seven hundred eighty-two million, seven hundred eighty-three thousand, fifty-five".