25347161 has 6 divisors (see below), whose sum is σ = 29485530. Its totient is φ = 21726096.

The previous prime is 25347149. The next prime is 25347169. The reversal of 25347161 is 16174352.

It can be written as a sum of positive squares in only one way, i.e., 13097161 + 12250000 = 3619^2 + 3500^2 .

It is not a de Polignac number, because 25347161 - 2⁶ = 25347097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25347169) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 258596 + ... + 258693.

It is an arithmetic number, because the mean of its divisors is an integer number (4914255).

Almost surely, 2^25347161 is an apocalyptic number.

It is an amenable number.

25347161 is a deficient number, since it is larger than the sum of its proper divisors (4138369).

25347161 is an equidigital number, since it uses as much as digits as its factorization.

25347161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517303 (or 517296 counting only the distinct ones).

The product of its digits is 5040, while the sum is 29.

The square root of 25347161 is about 5034.5964088495. The cubic root of 25347161 is about 293.7490299651.

The spelling of 25347161 in words is "twenty-five million, three hundred forty-seven thousand, one hundred sixty-one".