25042227725655 has 96 divisors (see below), whose sum is σ = 52539344492544. Its totient is φ = 11204303533056.

The previous prime is 25042227725639. The next prime is 25042227725687. The reversal of 25042227725655 is 55652772224052.

25042227725655 is a `hidden beast` number, since 2 + 5 + 0 + 4 + 2 + 2 + 2 + 7 + 72 + 565 + 5 = 666.

It is not a de Polignac number, because 25042227725655 - 2⁴ = 25042227725639 is a prime.

It is a super-2 number, since 2×25042227725655² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 30923802 + ... + 31723271.

It is an arithmetic number, because the mean of its divisors is an integer number (547284838464).

Almost surely, 2^{25042227725655} is an apocalyptic number.

25042227725655 is an abundant number, since it is smaller than the sum of its proper divisors (27497116766889).

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

25042227725655 is an equidigital number, since it uses as much as digits as its factorization.

25042227725655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62647147 (or 62647135 counting only the distinct ones).

The product of its (nonzero) digits is 23520000, while the sum is 54.

The spelling of 25042227725655 in words is "twenty-five trillion, forty-two billion, two hundred twenty-seven million, seven hundred twenty-five thousand, six hundred fifty-five".