25655309442048 has 176 divisors, whose sum is σ = 80335431662976. Its totient is φ = 7176310210560.

The previous prime is 25655309442047. The next prime is 25655309442071. The reversal of 25655309442048 is 84024490355652.

It is a tau number, because it is divible by the number of its divisors (176).

It is a super-2 number, since 2×25655309442048² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25655309442047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28761186 + ... + 29639777.

Almost surely, 2^{25655309442048} is an apocalyptic number.

It is an amenable number.

25655309442048 is an abundant number, since it is smaller than the sum of its proper divisors (54680122220928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25655309442048 is a wasteful number, since it uses less digits than its factorization.

25655309442048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58401010 (or 58400992 counting only the distinct ones).

The product of its (nonzero) digits is 41472000, while the sum is 57.

The spelling of 25655309442048 in words is "twenty-five trillion, six hundred fifty-five billion, three hundred nine million, four hundred forty-two thousand, forty-eight".