25893953 has 4 divisors (see below), whose sum is σ = 25904340. Its totient is φ = 25883568.

The previous prime is 25893949. The next prime is 25893971. The reversal of 25893953 is 35939852.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 12439729 + 13454224 = 3527^2 + 3668^2 .

It is a cyclic number.

It is not a de Polignac number, because 25893953 - 2² = 25893949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25893983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1043 + ... + 7271.

It is an arithmetic number, because the mean of its divisors is an integer number (6476085).

Almost surely, 2^25893953 is an apocalyptic number.

It is an amenable number.

25893953 is a deficient number, since it is larger than the sum of its proper divisors (10387).

25893953 is an equidigital number, since it uses as much as digits as its factorization.

25893953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10386.

The product of its digits is 291600, while the sum is 44.

The square root of 25893953 is about 5088.6101245822. The cubic root of 25893953 is about 295.8462838652.

The spelling of 25893953 in words is "twenty-five million, eight hundred ninety-three thousand, nine hundred fifty-three".