25126161 has 8 divisors (see below), whose sum is σ = 33545280. Its totient is φ = 16728912.

The previous prime is 25126159. The next prime is 25126163. The reversal of 25126161 is 16162152.

It is an interprime number because it is at equal distance from previous prime (25126159) and next prime (25126163).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25126161 - 2¹ = 25126159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25126163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2565 + ... + 7538.

It is an arithmetic number, because the mean of its divisors is an integer number (4193160).

Almost surely, 2^25126161 is an apocalyptic number.

It is an amenable number.

25126161 is a deficient number, since it is larger than the sum of its proper divisors (8419119).

25126161 is a wasteful number, since it uses less digits than its factorization.

25126161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10935.

The product of its digits is 720, while the sum is 24.

The square root of 25126161 is about 5012.6002234369. The cubic root of 25126161 is about 292.8928114172.

The spelling of 25126161 in words is "twenty-five million, one hundred twenty-six thousand, one hundred sixty-one".