25787223 has 48 divisors (see below), whose sum is σ = 46964736. Its totient is φ = 13245120.

The previous prime is 25787197. The next prime is 25787239. The reversal of 25787223 is 32278752.

It is a happy number.

It is not a de Polignac number, because 25787223 - 2⁵ = 25787191 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25787263) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87865 + ... + 88157.

It is an arithmetic number, because the mean of its divisors is an integer number (978432).

Almost surely, 2^25787223 is an apocalyptic number.

25787223 is a deficient number, since it is larger than the sum of its proper divisors (21177513).

25787223 is a wasteful number, since it uses less digits than its factorization.

25787223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 441 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 25787223 is about 5078.1121492145. The cubic root of 25787223 is about 295.4392498820.

It can be divided in two parts, 2578 and 7223, that added together give a square (9801 = 99²).

The spelling of 25787223 in words is "twenty-five million, seven hundred eighty-seven thousand, two hundred twenty-three".