25771266 has 12 divisors (see below), whose sum is σ = 55837782. Its totient is φ = 8590416.

The previous prime is 25771243. The next prime is 25771267. The reversal of 25771266 is 66217752.

It can be written as a sum of positive squares in only one way, i.e., 24295041 + 1476225 = 4929^2 + 1215^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 25771266.

It is not an unprimeable number, because it can be changed into a prime (25771267) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 715851 + ... + 715886.

Almost surely, 2^25771266 is an apocalyptic number.

25771266 is an abundant number, since it is smaller than the sum of its proper divisors (30066516).

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

25771266 is a wasteful number, since it uses less digits than its factorization.

25771266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1431745 (or 1431742 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 25771266 is about 5076.5407513385. The cubic root of 25771266 is about 295.3782985491.

The spelling of 25771266 in words is "twenty-five million, seven hundred seventy-one thousand, two hundred sixty-six".