2508878458 has 4 divisors (see below), whose sum is σ = 3763317690. Its totient is φ = 1254439228.

The previous prime is 2508878447. The next prime is 2508878459. The reversal of 2508878458 is 8548788052.

2508878458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 1902093769 + 606784689 = 43613^2 + 24633^2 .

It is a super-2 number, since 2×2508878458² = 12588942234032915528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2508878399 and 2508878408.

It is not an unprimeable number, because it can be changed into a prime (2508878459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627219613 + ... + 627219616.

Almost surely, 2^2508878458 is an apocalyptic number.

2508878458 is a deficient number, since it is larger than the sum of its proper divisors (1254439232).

2508878458 is a wasteful number, since it uses less digits than its factorization.

2508878458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1254439231.

The product of its (nonzero) digits is 5734400, while the sum is 55.

The square root of 2508878458 is about 50088.7058926461. The cubic root of 2508878458 is about 1358.8135662774.

The spelling of 2508878458 in words is "two billion, five hundred eight million, eight hundred seventy-eight thousand, four hundred fifty-eight".