25561082054 has 32 divisors (see below), whose sum is σ = 41972484096. Its totient is φ = 11622418560.

The previous prime is 25561081999. The next prime is 25561082069. The reversal of 25561082054 is 45028016552.

It is a junction number, because it is equal to n+sod(n) for n = 25561081999 and 25561082017.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 663197 + ... + 700679.

It is an arithmetic number, because the mean of its divisors is an integer number (1311640128).

Almost surely, 2^25561082054 is an apocalyptic number.

25561082054 is a deficient number, since it is larger than the sum of its proper divisors (16411402042).

25561082054 is a wasteful number, since it uses less digits than its factorization.

25561082054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38180.

The product of its (nonzero) digits is 96000, while the sum is 38.

The spelling of 25561082054 in words is "twenty-five billion, five hundred sixty-one million, eighty-two thousand, fifty-four".