25562851 has 4 divisors (see below), whose sum is σ = 25654104. Its totient is φ = 25471600.

The previous prime is 25562839. The next prime is 25562869. The reversal of 25562851 is 15826552.

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

It is a cyclic number.

It is not a de Polignac number, because 25562851 - 2¹⁵ = 25530083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25562051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45205 + ... + 45766.

It is an arithmetic number, because the mean of its divisors is an integer number (6413526).

Almost surely, 2^25562851 is an apocalyptic number.

25562851 is a deficient number, since it is larger than the sum of its proper divisors (91253).

25562851 is an equidigital number, since it uses as much as digits as its factorization.

25562851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91252.

The product of its digits is 24000, while the sum is 34.

The square root of 25562851 is about 5055.9718155860. The cubic root of 25562851 is about 294.5798903711.

The spelling of 25562851 in words is "twenty-five million, five hundred sixty-two thousand, eight hundred fifty-one".