25771288 has 16 divisors (see below), whose sum is σ = 49500360. Its totient is φ = 12571200.

The previous prime is 25771267. The next prime is 25771289. The reversal of 25771288 is 88217752.

It is a self number, because there is not a number n which added to its sum of digits gives 25771288.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25771289) 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 3 ways as a sum of consecutive naturals, for example, 38958 + ... + 39613.

Almost surely, 2^25771288 is an apocalyptic number.

It is an amenable number.

25771288 is a deficient number, since it is larger than the sum of its proper divisors (23729072).

25771288 is a wasteful number, since it uses less digits than its factorization.

25771288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78618 (or 78614 counting only the distinct ones).

The product of its digits is 62720, while the sum is 40.

The square root of 25771288 is about 5076.5429181678. The cubic root of 25771288 is about 295.3783826003.

It can be divided in two parts, 2577 and 1288, that multiplied together give a triangular number (3319176 = T₂₅₇₆).

The spelling of 25771288 in words is "twenty-five million, seven hundred seventy-one thousand, two hundred eighty-eight".