25353457 has 4 divisors (see below), whose sum is σ = 25971876. Its totient is φ = 24735040.

The previous prime is 25353437. The next prime is 25353469. The reversal of 25353457 is 75435352.

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 13512976 + 11840481 = 3676^2 + 3441^2 .

It is a cyclic number.

It is not a de Polignac number, because 25353457 - 2¹¹ = 25351409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25353407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309148 + ... + 309229.

It is an arithmetic number, because the mean of its divisors is an integer number (6492969).

Almost surely, 2^25353457 is an apocalyptic number.

It is an amenable number.

25353457 is a deficient number, since it is larger than the sum of its proper divisors (618419).

25353457 is an equidigital number, since it uses as much as digits as its factorization.

25353457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618418.

The product of its digits is 63000, while the sum is 34.

The square root of 25353457 is about 5035.2216435823. The cubic root of 25353457 is about 293.7733494643.

It can be divided in two parts, 2535345 and 7, that added together give a palindrome (2535352).

The spelling of 25353457 in words is "twenty-five million, three hundred fifty-three thousand, four hundred fifty-seven".