25861253 has 8 divisors (see below), whose sum is σ = 28610496. Its totient is φ = 23178400.

The previous prime is 25861247. The next prime is 25861271. The reversal of 25861253 is 35216852.

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

It is a cyclic number.

It is not a de Polignac number, because 25861253 - 2¹⁶ = 25795717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25861153) 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 7 ways as a sum of consecutive naturals, for example, 15776 + ... + 17337.

It is an arithmetic number, because the mean of its divisors is an integer number (3576312).

Almost surely, 2^25861253 is an apocalyptic number.

It is an amenable number.

25861253 is a deficient number, since it is larger than the sum of its proper divisors (2749243).

25861253 is a wasteful number, since it uses less digits than its factorization.

25861253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33195.

The product of its digits is 14400, while the sum is 32.

The square root of 25861253 is about 5085.3960514398. The cubic root of 25861253 is about 295.7216955921.

The spelling of 25861253 in words is "twenty-five million, eight hundred sixty-one thousand, two hundred fifty-three".