2505250305278 has 16 divisors (see below), whose sum is σ = 4320431668224. Its totient is φ = 1067249487480.

The previous prime is 2505250305277. The next prime is 2505250305347. The reversal of 2505250305278 is 8725030525052.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505250305277) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535765478 + ... + 535770153.

It is an arithmetic number, because the mean of its divisors is an integer number (270026979264).

Almost surely, 2^{2505250305278} is an apocalyptic number.

2505250305278 is a deficient number, since it is larger than the sum of its proper divisors (1815181362946).

2505250305278 is a wasteful number, since it uses less digits than its factorization.

2505250305278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1071535807.

The product of its (nonzero) digits is 840000, while the sum is 44.

The spelling of 2505250305278 in words is "two trillion, five hundred five billion, two hundred fifty million, three hundred five thousand, two hundred seventy-eight".