2513878 has 4 divisors (see below), whose sum is σ = 3770820. Its totient is φ = 1256938.

The previous prime is 2513839. The next prime is 2513881. The reversal of 2513878 is 8783152.

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 (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 628468 + ... + 628471.

It is an arithmetic number, because the mean of its divisors is an integer number (942705).

2^2513878 is an apocalyptic number.

2513878 is a deficient number, since it is larger than the sum of its proper divisors (1256942).

2513878 is a wasteful number, since it uses less digits than its factorization.

2513878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1256941.

The product of its digits is 13440, while the sum is 34.

The square root of 2513878 is about 1585.5213653559. The cubic root of 2513878 is about 135.9715554699.

The spelling of 2513878 in words is "two million, five hundred thirteen thousand, eight hundred seventy-eight".