25670055582 has 48 divisors (see below), whose sum is σ = 57181570992. Its totient is φ = 8316691200.

The previous prime is 25670055577. The next prime is 25670055629. The reversal of 25670055582 is 28555007652.

25670055582 is a `hidden beast` number, since 2 + 5 + 67 + 0 + 0 + 5 + 5 + 582 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 630957 + ... + 670407.

It is an arithmetic number, because the mean of its divisors is an integer number (1191282729).

Almost surely, 2^25670055582 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25670055582, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28590785496).

25670055582 is an abundant number, since it is smaller than the sum of its proper divisors (31511515410).

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

25670055582 is a wasteful number, since it uses less digits than its factorization.

25670055582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40473 (or 40470 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The spelling of 25670055582 in words is "twenty-five billion, six hundred seventy million, fifty-five thousand, five hundred eighty-two".