25869854 has 4 divisors (see below), whose sum is σ = 38804784. Its totient is φ = 12934926.

The previous prime is 25869821. The next prime is 25869859. The reversal of 25869854 is 45896852.

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

It is a junction number, because it is equal to n+sod(n) for n = 25869799 and 25869808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25869859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6467462 + ... + 6467465.

It is an arithmetic number, because the mean of its divisors is an integer number (9701196).

Almost surely, 2^25869854 is an apocalyptic number.

25869854 is a deficient number, since it is larger than the sum of its proper divisors (12934930).

25869854 is a wasteful number, since it uses less digits than its factorization.

25869854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12934929.

The product of its digits is 691200, while the sum is 47.

The square root of 25869854 is about 5086.2416379877. The cubic root of 25869854 is about 295.7544759112.

The spelling of 25869854 in words is "twenty-five million, eight hundred sixty-nine thousand, eight hundred fifty-four".