2505505250555 has 4 divisors (see below), whose sum is σ = 3006606300672. Its totient is φ = 2004404200440.

The previous prime is 2505505250531. The next prime is 2505505250557. The reversal of 2505505250555 is 5550525055052.

It is a happy number.

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

It is not a de Polignac number, because 2505505250555 - 2¹⁴ = 2505505234171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505505250557) 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, 250550525051 + ... + 250550525060.

It is an arithmetic number, because the mean of its divisors is an integer number (751651575168).

Almost surely, 2^{2505505250555} is an apocalyptic number.

2505505250555 is a deficient number, since it is larger than the sum of its proper divisors (501101050117).

2505505250555 is an equidigital number, since it uses as much as digits as its factorization.

2505505250555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501101050116.

The product of its (nonzero) digits is 1562500, while the sum is 44.

The spelling of 2505505250555 in words is "two trillion, five hundred five billion, five hundred five million, two hundred fifty thousand, five hundred fifty-five".