2505275505278 has 16 divisors (see below), whose sum is σ = 4625124010080. Its totient is φ = 991098002016.

The previous prime is 2505275505277. The next prime is 2505275505289. The reversal of 2505275505278 is 8725055725052.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 (2505275505277) 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 7 ways as a sum of consecutive naturals, for example, 6882624833 + ... + 6882625196.

It is an arithmetic number, because the mean of its divisors is an integer number (289070250630).

Almost surely, 2^{2505275505278} is an apocalyptic number.

2505275505278 is a deficient number, since it is larger than the sum of its proper divisors (2119848504802).

2505275505278 is a wasteful number, since it uses less digits than its factorization.

2505275505278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13765250051.

The product of its (nonzero) digits is 9800000, while the sum is 53.

The spelling of 2505275505278 in words is "two trillion, five hundred five billion, two hundred seventy-five million, five hundred five thousand, two hundred seventy-eight".