25953853 has 4 divisors (see below), whose sum is σ = 26379388. Its totient is φ = 25528320.

The previous prime is 25953833. The next prime is 25953871. The reversal of 25953853 is 35835952.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1570009 + 24383844 = 1253^2 + 4938^2 .

It is a cyclic number.

It is not a de Polignac number, because 25953853 - 2⁹ = 25953341 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 (25953833) 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, 212676 + ... + 212797.

It is an arithmetic number, because the mean of its divisors is an integer number (6594847).

Almost surely, 2^25953853 is an apocalyptic number.

It is an amenable number.

25953853 is a deficient number, since it is larger than the sum of its proper divisors (425535).

25953853 is an equidigital number, since it uses as much as digits as its factorization.

25953853 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425534.

The product of its digits is 162000, while the sum is 40.

The square root of 25953853 is about 5094.4924182886. The cubic root of 25953853 is about 296.0742334208.

The spelling of 25953853 in words is "twenty-five million, nine hundred fifty-three thousand, eight hundred fifty-three".