2525780557806 has 24 divisors (see below), whose sum is σ = 5552542384872. Its totient is φ = 765388047600.

The previous prime is 2525780557801. The next prime is 2525780557813. The reversal of 2525780557806 is 6087550875252.

It is a self number, because there is not a number n which added to its sum of digits gives 2525780557806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525780557801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1739517565 + ... + 1739519016.

It is an arithmetic number, because the mean of its divisors is an integer number (231355932703).

Almost surely, 2^{2525780557806} is an apocalyptic number.

2525780557806 is an abundant number, since it is smaller than the sum of its proper divisors (3026761827066).

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

2525780557806 is a wasteful number, since it uses less digits than its factorization.

2525780557806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3479036608 (or 3479036597 counting only the distinct ones).

The product of its (nonzero) digits is 47040000, while the sum is 60.

The spelling of 2525780557806 in words is "two trillion, five hundred twenty-five billion, seven hundred eighty million, five hundred fifty-seven thousand, eight hundred six".