25726287 has 16 divisors (see below), whose sum is σ = 36447840. Its totient is φ = 16084992.

The previous prime is 25726273. The next prime is 25726303. The reversal of 25726287 is 78262752.

It is not a de Polignac number, because 25726287 - 2⁶ = 25726223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25726237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17289 + ... + 18717.

It is an arithmetic number, because the mean of its divisors is an integer number (2277990).

Almost surely, 2^25726287 is an apocalyptic number.

25726287 is a deficient number, since it is larger than the sum of its proper divisors (10721553).

25726287 is a wasteful number, since it uses less digits than its factorization.

25726287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1802.

The product of its digits is 94080, while the sum is 39.

The square root of 25726287 is about 5072.1087330616. The cubic root of 25726287 is about 295.2063556662.

The spelling of 25726287 in words is "twenty-five million, seven hundred twenty-six thousand, two hundred eighty-seven".