25456894 has 4 divisors (see below), whose sum is σ = 38185344. Its totient is φ = 12728446.

The previous prime is 25456891. The next prime is 25456919. The reversal of 25456894 is 49865452.

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

It is a self number, because there is not a number n which added to its sum of digits gives 25456894.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25456891) by changing a digit.

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, 6364222 + ... + 6364225.

It is an arithmetic number, because the mean of its divisors is an integer number (9546336).

Almost surely, 2^25456894 is an apocalyptic number.

25456894 is a deficient number, since it is larger than the sum of its proper divisors (12728450).

25456894 is a wasteful number, since it uses less digits than its factorization.

25456894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12728449.

The product of its digits is 345600, while the sum is 43.

The square root of 25456894 is about 5045.4825339109. The cubic root of 25456894 is about 294.1723194224.

It can be divided in two parts, 2 and 5456894, that added together give a square (5456896 = 2336²).

The spelling of 25456894 in words is "twenty-five million, four hundred fifty-six thousand, eight hundred ninety-four".