2525780557807 has 4 divisors (see below), whose sum is σ = 2720071369960. Its totient is φ = 2331489745656.

The previous prime is 2525780557801. The next prime is 2525780557813. The reversal of 2525780557807 is 7087550875252.

It is a happy number.

2525780557807 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2525780557801) and next prime (2525780557813).

It is a cyclic number.

It is not a de Polignac number, because 2525780557807 - 2³ = 2525780557799 is a prime.

It is a Duffinian number.

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 3 ways as a sum of consecutive naturals, for example, 97145406057 + ... + 97145406082.

It is an arithmetic number, because the mean of its divisors is an integer number (680017842490).

Almost surely, 2^{2525780557807} is an apocalyptic number.

2525780557807 is a deficient number, since it is larger than the sum of its proper divisors (194290812153).

2525780557807 is a wasteful number, since it uses less digits than its factorization.

2525780557807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194290812152.

The product of its (nonzero) digits is 54880000, while the sum is 61.

The spelling of 2525780557807 in words is "two trillion, five hundred twenty-five billion, seven hundred eighty million, five hundred fifty-seven thousand, eight hundred seven".