25861194 has 40 divisors (see below), whose sum is σ = 58920708. Its totient is φ = 8475840.

The previous prime is 25861193. The next prime is 25861211. The reversal of 25861194 is 49116852.

It can be written as a sum of positive squares in 2 ways, for example, as 25857225 + 3969 = 5085^2 + 63^2 .

It is not an unprimeable number, because it can be changed into a prime (25861193) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 8574 + ... + 11190.

Almost surely, 2^25861194 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25861194, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29460354).

25861194 is an abundant number, since it is smaller than the sum of its proper divisors (33059514).

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

25861194 is a wasteful number, since it uses less digits than its factorization.

25861194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2692 (or 2683 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 25861194 is about 5085.3902505118. The cubic root of 25861194 is about 295.7214707049.

The spelling of 25861194 in words is "twenty-five million, eight hundred sixty-one thousand, one hundred ninety-four".