2502654878 has 4 divisors (see below), whose sum is σ = 3753982320. Its totient is φ = 1251327438.

The previous prime is 2502654853. The next prime is 2502654887. The reversal of 2502654878 is 8784562052.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625663718 + ... + 625663721.

It is an arithmetic number, because the mean of its divisors is an integer number (938495580).

Almost surely, 2^2502654878 is an apocalyptic number.

2502654878 is a deficient number, since it is larger than the sum of its proper divisors (1251327442).

2502654878 is a wasteful number, since it uses less digits than its factorization.

2502654878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251327441.

The product of its (nonzero) digits is 1075200, while the sum is 47.

The square root of 2502654878 is about 50026.5417353628. The cubic root of 2502654878 is about 1357.6890681742.

The spelling of 2502654878 in words is "two billion, five hundred two million, six hundred fifty-four thousand, eight hundred seventy-eight".