2500500278 has 4 divisors (see below), whose sum is σ = 3750750420. Its totient is φ = 1250250138.

The previous prime is 2500500271. The next prime is 2500500281. The reversal of 2500500278 is 8720050052.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2500500278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500500271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625125068 + ... + 625125071.

It is an arithmetic number, because the mean of its divisors is an integer number (937687605).

Almost surely, 2^2500500278 is an apocalyptic number.

2500500278 is a deficient number, since it is larger than the sum of its proper divisors (1250250142).

2500500278 is a wasteful number, since it uses less digits than its factorization.

2500500278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1250250141.

The product of its (nonzero) digits is 5600, while the sum is 29.

The square root of 2500500278 is about 50005.0025297470. The cubic root of 2500500278 is about 1357.2993331538.

The spelling of 2500500278 in words is "two billion, five hundred million, five hundred thousand, two hundred seventy-eight".