2525905685988 has 192 divisors, whose sum is σ = 6691024919040. Its totient is φ = 823882752000.

The previous prime is 2525905685983. The next prime is 2525905685999. The reversal of 2525905685988 is 8895865095252.

2525905685988 is a `hidden beast` number, since 2 + 5 + 2 + 5 + 9 + 0 + 568 + 59 + 8 + 8 = 666.

It is a super-2 number, since 2×2525905685988² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2525905685983) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1092991353 + ... + 1092993663.

It is an arithmetic number, because the mean of its divisors is an integer number (34849088120).

Almost surely, 2^{2525905685988} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2525905685988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3345512459520).

2525905685988 is an abundant number, since it is smaller than the sum of its proper divisors (4165119233052).

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

2525905685988 is a wasteful number, since it uses less digits than its factorization.

2525905685988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3555 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 622080000, while the sum is 72.

The spelling of 2525905685988 in words is "two trillion, five hundred twenty-five billion, nine hundred five million, six hundred eighty-five thousand, nine hundred eighty-eight".