2525252780525 has 6 divisors (see below), whose sum is σ = 3131313447882. Its totient is φ = 2020202224400.

The previous prime is 2525252780521. The next prime is 2525252780527. The reversal of 2525252780525 is 5250872525252.

It can be written as a sum of positive squares in 3 ways, for example, as 812311046089 + 1712941734436 = 901283^2 + 1308794^2 .

It is not a de Polignac number, because 2525252780525 - 2² = 2525252780521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2525252780521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 50505055586 + ... + 50505055635.

It is an arithmetic number, because the mean of its divisors is an integer number (521885574647).

Almost surely, 2^{2525252780525} is an apocalyptic number.

2525252780525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2525252780525 is a deficient number, since it is larger than the sum of its proper divisors (606060667357).

2525252780525 is a wasteful number, since it uses less digits than its factorization.

2525252780525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101010111231 (or 101010111226 counting only the distinct ones).

The product of its (nonzero) digits is 5600000, while the sum is 50.

The spelling of 2525252780525 in words is "two trillion, five hundred twenty-five billion, two hundred fifty-two million, seven hundred eighty thousand, five hundred twenty-five".