25603161035388 has 12 divisors (see below), whose sum is σ = 59740709082600. Its totient is φ = 8534387011792.

The previous prime is 25603161035381. The next prime is 25603161035437. The reversal of 25603161035388 is 88353016130652.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 25603161035388.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25603161035381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1066798376463 + ... + 1066798376486.

It is an arithmetic number, because the mean of its divisors is an integer number (4978392423550).

Almost surely, 2^{25603161035388} is an apocalyptic number.

It is an amenable number.

25603161035388 is an abundant number, since it is smaller than the sum of its proper divisors (34137548047212).

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

25603161035388 is a wasteful number, since it uses less digits than its factorization.

25603161035388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133596752956 (or 2133596752954 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 51.

The spelling of 25603161035388 in words is "twenty-five trillion, six hundred three billion, one hundred sixty-one million, thirty-five thousand, three hundred eighty-eight".