25344161 has 4 divisors (see below), whose sum is σ = 26835012. Its totient is φ = 23853312.

The previous prime is 25344131. The next prime is 25344167. The reversal of 25344161 is 16144352.

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 15358561 + 9985600 = 3919^2 + 3160^2 .

It is not a de Polignac number, because 25344161 - 2¹⁴ = 25327777 is a prime.

It is a super-3 number, since 3×25344161³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25344161.

It is not an unprimeable number, because it can be changed into a prime (25344167) 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, 745400 + ... + 745433.

It is an arithmetic number, because the mean of its divisors is an integer number (6708753).

Almost surely, 2^25344161 is an apocalyptic number.

It is an amenable number.

25344161 is a deficient number, since it is larger than the sum of its proper divisors (1490851).

25344161 is a wasteful number, since it uses less digits than its factorization.

25344161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490850.

The product of its digits is 2880, while the sum is 26.

The square root of 25344161 is about 5034.2984615535. The cubic root of 25344161 is about 293.7374404770.

The spelling of 25344161 in words is "twenty-five million, three hundred forty-four thousand, one hundred sixty-one".