2505894 has 8 divisors (see below), whose sum is σ = 5011800. Its totient is φ = 835296.

The previous prime is 2505863. The next prime is 2505901. The reversal of 2505894 is 4985052.

2505894 = 790² + 791² + ... + 793².

2505894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

2505894 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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208819 + ... + 208830.

It is an arithmetic number, because the mean of its divisors is an integer number (626475).

2^2505894 is an apocalyptic number.

2505894 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.

2505894 is a wasteful number, since it uses less digits than its factorization.

2505894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417654.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 2505894 is about 1583.0015792791. The cubic root of 2505894 is about 135.8274556362.

It can be divided in two parts, 25058 and 94, that added together give a palindrome (25152).

The spelling of 2505894 in words is "two million, five hundred five thousand, eight hundred ninety-four".