2545878 has 8 divisors (see below), whose sum is σ = 5091768. Its totient is φ = 848624.

The previous prime is 2545861. The next prime is 2545883. The reversal of 2545878 is 8785452.

It is a sphenic number, since it is the product of 3 distinct primes.

2545878 is an admirable number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212151 + ... + 212162.

It is an arithmetic number, because the mean of its divisors is an integer number (636471).

2^2545878 is an apocalyptic number.

2545878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2545878 is a wasteful number, since it uses less digits than its factorization.

2545878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424318.

The product of its digits is 89600, while the sum is 39.

The square root of 2545878 is about 1595.5807720075. The cubic root of 2545878 is about 136.5460671840.

The spelling of 2545878 in words is "two million, five hundred forty-five thousand, eight hundred seventy-eight".