25741986 has 8 divisors (see below), whose sum is σ = 51483984. Its totient is φ = 8580660.

The previous prime is 25741981. The next prime is 25741987. The reversal of 25741986 is 68914752.

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

25741986 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (25741981) 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, 2145160 + ... + 2145171.

It is an arithmetic number, because the mean of its divisors is an integer number (6435498).

Almost surely, 2^25741986 is an apocalyptic number.

25741986 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.

25741986 is a wasteful number, since it uses less digits than its factorization.

25741986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4290336.

The product of its digits is 120960, while the sum is 42.

The square root of 25741986 is about 5073.6560782142. The cubic root of 25741986 is about 295.2663915639.

It can be divided in two parts, 2574 and 1986, that added together give a triangular number (4560 = T₉₅).

The spelling of 25741986 in words is "twenty-five million, seven hundred forty-one thousand, nine hundred eighty-six".